How to improve my chess level

when my playing goes down hill, I use math to calculate everything.....

There is a minor caveat, howbeit, with playing higher rated opponents in tandem with the desire to augment your Elo. I fell susceptible to this caveat, and thus, I gave up all hope on Elo and resorted to playing high rated opponents.

It would be intriguing for some mathematically inclined grandmaster to be brainwashed by 48 hours straight of topology and scrawl all of these esoteric equations eventually boiling down to tori. The toroidal field will surely yield!

Coming from a person of remarkable incompetence but in pretty much the situation, I recommend viewing some Eric Rosen or Barthomolew videos, for they will encourage you to alter your thinking regime. You will be compelled to reason as these masters do, and mind you, this actually does operate efficaciously for brief bursts of time (at least for lousy me). However, for improvement that can virtually be etched over your soul, you will need to instil regularly. In that respect, I believe chess differs from mathematics, in the sense that math is NOT a spectator sport, even in spite of bearing some thought resemblances. Happy instilling and ingraining!

"... for those that want to be as good as they can be, they'll have to work hard.
Play opponents who are better than you … Learn basic endgames. Create a simple opening repertoire (understanding the moves are far more important than memorizing them). Study tactics. And pick up tons of patterns. That’s the drumbeat of success. ..." - IM Jeremy Silman (December 27, 2018)
https://www.chess.com/article/view/little-things-that-help-your-game
https://www.chess.com/article/view/how-to-start-out-in-chess

https://www.chess.com/blog/michechess89/8-tips-to-increase-your-online-rating

https://www.chess.com/news/view/rapid-chess-improvement
https://www.chess.com/news/view/a-new-years-resolution-improve-your-chess-with-new-lessons

https://www.chess.com/article/view/mastery-chess-lessons-are-here
"... In order to maximize the benefits of [theory and practice], these two should be approached in a balanced manner. ... Play as many slow games (60 5 or preferably slower) as possible, ... The other side of improvement is theory. ... This can be reading books, taking lessons, watching videos, doing problems on software, etc. ..." - NM Dan Heisman (2002)
https://web.archive.org/web/20140627084053/http://www.chesscafe.com/text/heisman19.pdf
"... If it’s instruction, you look for an author that addresses players at your level (buying something that’s too advanced won’t help you at all). This means that a classic book that is revered by many people might not be useful for you. ..." - IM Jeremy Silman (2015)
https://www.chess.com/article/view/the-best-chess-books-ever
Here are some reading possibilities that I often mention:
Simple Attacking Plans by Fred Wilson (2012)
https://web.archive.org/web/20140708090402/http://www.chesscafe.com/text/review874.pdf
http://dev.jeremysilman.com/shop/pc/Simple-Attacking-Plans-77p3731.htm
Logical Chess: Move by Move by Irving Chernev (1957)
https://web.archive.org/web/20140708104437/http://www.chesscafe.com/text/logichess.pdf
The Most Instructive Games of Chess Ever Played by Irving Chernev (1965)
https://chessbookreviews.wordpress.com/tag/most-instructive-games-of-chess-ever-played/
Winning Chess by Irving Chernev and Fred Reinfeld (1948)
https://web.archive.org/web/20140708093415/http://www.chesscafe.com/text/review919.pdf
Back to Basics: Tactics by Dan Heisman (2007)
https://web.archive.org/web/20140708233537/http://www.chesscafe.com/text/review585.pdf
https://www.chess.com/article/view/book-review-back-to-basics-tactics
https://static1.squarespace.com/static/5856bd64ff7c50433c3803db/t/5895fc0ca5790af7895297e4/1486224396755/btbtactics2excerpt.pdf
Discovering Chess Openings by GM John Emms (2006)
https://web.archive.org/web/20140627114655/http://www.chesscafe.com/text/hansen91.pdf
Openings for Amateurs by Pete Tamburro (2014)
http://kenilworthian.blogspot.com/2014/05/review-of-pete-tamburros-openings-for.html
https://chessbookreviews.wordpress.com/tag/openings-for-amateurs/

https://www.chess.com/blog/ForwardChess/book-of-the-week-openings-for-amateurs
https://www.mongoosepress.com/catalog/excerpts/openings_amateurs.pdf
Chess Endgames for Kids by Karsten Müller (2015)
https://chessbookreviews.wordpress.com/tag/chess-endgames-for-kids/
http://www.gambitbooks.com/pdfs/Chess_Endgames_for_Kids.pdf
A Guide to Chess Improvement by Dan Heisman (2010)
https://web.archive.org/web/20140708105628/http://www.chesscafe.com/text/review781.pdf
Studying Chess Made Easy by Andrew Soltis (2009)
https://web.archive.org/web/20140708090448/http://www.chesscafe.com/text/review750.pdf
Seirawan stuff:
http://seagaard.dk/review/eng/bo_beginner/ev_winning_chess.asp?KATID=BO&ID=BO-Beginner

https://web.archive.org/web/20140708090229/http://www.chesscafe.com/text/review492.pdf
http://www.nystar.com/tamarkin/review1.htm
https://web.archive.org/web/20140627132508/http://www.chesscafe.com/text/hansen173.pdf

https://www.chess.com/article/view/book-review-winning-chess-openings

https://www.chess.com/article/view/book-review-winning-chess-endings
https://web.archive.org/web/20140708092617/http://www.chesscafe.com/text/review560.pdf

Both are enjoyable

no weyltransform. they r looking at wrong math. sometimes u must be a scientists and try any calculation u know before find the right ones

All games are mathematical in nature to some extent or another, as John Conway puts it in his remarkable book. When I study mathematics (which nowadays has faced a dramatic drop), I feel something that is, for lack of a better word, tangible, a glorious sensation that accompanies it which words can hardly do justice to. In chess, I do not feel in such a manner. But... there's combinatorics, matrices and algorithms seething at the surfaces of both mathematics and chess, with a key emphasis on logic. Great complexity is to be unlocked as you plan out all the game trees, so yes, there is a connection. 

Even were there to exist no inextricable connection in any apparent manner, there would be a bond nonetheless via the yin yang. This pinnacle of Eastern philosophy is utterly marvellous with its ubiquitous impact on the cosmos encompassing us. Below is a remarkable and profoundly good link:

https://www.youtube.com/watch?v=6gIMVxFen_A

You haven't learned the Fundamentals.

Of course, if that were the only source of information available about the mathematical nature of games there would hardly be anything profound. Game theory’s implications, however, reveal a great deal more. Eigenfunctions, Nash equilibria,  Mixed strategy, mathematical set theory - surely this things are filled with intricacies all entwining in the wonders of a game. As for the inherent connections between math and chess not immediately related to game theory, there is logical thinking, probability, Eulerian circles, combinatorics, etc.

Theoretically it should be possible for all chess questions to be answered via deductive reasoning, as a consequence of the axiomatic systems prevalent in both. Gödel’s incompleteness theorem can also be sumptuous.

Much analogous to the way that the key role molecules play in the wonderful specialised branch of biochemistry, molecular biology. The bottom up approach is just about as valid as the top down, and by simply employing Richard Feynman's approach to always inquire 'why' raises an intriguing farrago of complexities. 

"... 'Chess Fundamentals' ... does not deal so minutely as this book will with the things that beginners need to know. ..." - from Capablanca's A Primer of Chess
"... For let’s make no mistake, what ground Capablanca covers, he covers well. I enjoyed reading Capablanca’s presentation of even well-worn and standard positions. ...
Still, when compared with other instructional books for beginners and intermediate players, Capablanca’s Chess Fundamentals would not be my first choice. Other books cover the same or similar ground with a less confusing structure and more thoroughness. The following works come to mind as equal or in some ways superior: Lasker’s Common Sense in Chess; Znosko-Borovsky’s series of books; and Edward Lasker’s Chess Strategy. Later works that equal or surpass Chess Fundamentals would include Reuben Fine’s Chess the Easy Way and any number of Horowitz tomes.
Capablanca’s work has historical interest and value, of course, and for that reason alone belongs in any chess lover’s library. But there are better instructional books on the market. Certainly the works of Seirawan, Silman, Pandolfini, Polgar, Alburt, etc. are more accessible, speak a more modern idiom, and utilize advances in chess teaching and general pedagogy, etc. ..." - David Kaufman (2007)
https://web.archive.org/web/20131010102057/http://www.chesscafe.com/text/review564.pdf

Presumably because he was flummoxed by the age old enigma relating to why spaghetti broke into three pieces. I heard there was an MIT study on this enigma; they even built a fracture device to model and record the fragmentation process.

Feynman additionally decried his colleagues as idiots for developing the notion of colour charge, something which had no relation to colour in any manner. Funny how we can get so irate about quantum chromodynamics.

Nonetheless, he was a brilliant theoretical physicist. Path integral formulation of QM, QED and a crucial part of condensed matter physics, Feynman’s worked on them. His superior mathematical ability is reflected by his excellent performance in the Putnam mathematical contest.

If only we could nuclear pasta the time with this. But then, we’d be a tad bit degenerate. The gnocchi phase, bucatini phase, Swiss cheese phase, at least we can enjoy Europe’s extraordinary cuisine in tandem with astrophysics.