How can i get better at playing chess?

.. It can't hurt !  [ : ..{discovered, under 'intermediate' chess/ "YouTube"}.

Since you are just a starting up players, here are my suggestions.

 Focus at improving your tactics. You can do that by solving chess tactics everyday. Sample of tactics are pin,fork and matting combinations. With an improved tactical ability, you are giving yourself  a better chance to spot tactics that win material or a mating combination against your opponent's king. With an improved tactical ability, you will also have better defensive awareness against the tactical threats of your opponent. Another thing, always study your opponent's last move. Aways look at the whole board.

Study basic endgames like the opposition rule in king and pawn endgames. Follow the general opening principles. 

I am giving a free lesson if you want, just message me, all you are going to need is skype

Possibly of interest:
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 (1949)
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
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.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
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/20140708092617/http://www.chesscafe.com/text/review560.pdf
https://www.chess.com/article/view/book-review-winning-chess-endings
https://web.archive.org/web/20140627132508/http://www.chesscafe.com/text/hansen173.pdf
http://www.nystar.com/tamarkin/review1.htm

I gave a very quick look to your games, I thought you were hanging tons of material and stuff but it wasn't really the case, (yes you did tactical mistakes too), I think you should benefit quite a lot from focusing on the opening principles for now, so it's about controlling the center and fighting for it, and developing the pieces, hopefully if you can master this 2 principles , and maybe a little tactic too, but not really that much, my guess is that you should be able to leap abput 200-300 points in daily.

post some of your games in the analysis forum, with a little luck you will have more detailed answers, by the way I forgot to mention review your games and try to figure out what you did wrong and how you can improve.

P.S.: I really love the video that Flank_Attacks posted but I guess you should start from opening principles

"... For beginning players, [Discovering Chess Openings] will offer an opportunity to start out on the right foot and really get a feel for what is happening on the board. ..." - FM Carsten Hansen (2006)
https://web.archive.org/web/20140627114655/http://www.chesscafe.com/text/hansen91.pdf