Should i stop playing blitz in order to get better?

Just recently peaked at a rating of 1200 in blitz (3min) and I feel like I'm improving a lot lately. I've been stepping up my "studying", by watching more and more YouTube videos and I would say that I've drastically improved. I have a goal of reaching around 1300-1500 by this year, and I'm wondering if you guys have any general tips in order to achieve it. I like playing blitz more than the longer time controls, even though a win or a loss is often decided in a major blunder because of time constraints. Anyways, I would like to hear you guys opinion on the matter. 

Danya, Igor and Eric Rosen are the main people I've been watching, any others I should watch and learn from? 

The general view here is that playing blitz and bullet do not help you improve, and that you should play longer time controls and get used to thoroughly studying the board. Do what you like, though. I don't really buy into it myself.

I don't think playing some blitz is necessarily bad but if that's all you do then you probably won't improve much.

 I stopped playing blitz (since this post) and shifted my focus over to rapid. Just reached 1300 a couple of days ago and trying now to maintain this level. My goal of 1500 before the year's end is looking more and more likely. I've realized that playing longer time controls is "easier" for me, and that blundering doesn't happen that frequently as it would in blitz. I've also played a fair share of games over at Lichess, beating players in the 1900-2000 range, which I'm very much proud of. Uni is starting again soon, which means less time for chess. Hopefully, it won't affect my progress as much.  I'll update again sometime in September.  

Play Longer Time Controls...
For many at the beginner-novice level, speed chess tends to be primarily an exercise in moving pieces around faster than your opponent while avoiding checkmate, in hopes that his/her clock runs out sooner than yours.  And/or hoping to notice and exploit your opponent’s blunders while hoping they don't notice yours.  The reason for this is that there is little time to think about what you should be doing.

It makes sense that taking more time to think about what you should be doing would promote improvement in your chess skills and results.

An effective way to improve your chess is therefore to play mostly longer time controls, including "daily" chess, so you have time to think about what you should be doing.

This is not to suggest that you should necessarily play exclusively slow or daily time controls, but they should be a significant percentage of your games, at least as much, if not more so than speed games which, while they may be fun, do almost nothing to promote an understanding of how to play the game well.

Here's what IM Jeremy Silman, well-known chess book author, has to say on the topic...
https://www.chess.com/article/view/longer-time-controls-are-more-instructive

And Dan Heisman, well-known chess teacher and chess book author…
https://web.archive.org/web/20140627052239/http:/www.chesscafe.com/text/heisman16.pdf
https://www.chess.com/blog/RussBell/dan-heisman-resources

and the experience of a FIDE Master...
https://www.chess.com/forum/view/general/how-blitz-and-bullet-rotted-my-brain-don-t-let-it-rot-yours

for some good stuff on general chess improvement, with a view toward learning what you should be doing, browse my blog.....
https://www.chess.com/blog/RussBell

I believe in youuuuuuuuuuuuuuuuuu sorta

Reached 1400 atleast...

@1

"Should i stop playing blitz in order to get better?"
++ Yes. Blitz is for fun, rapid 15|10 is to get better.

See posts number 4 and 7.  Your advice really worked, assuming the advice somehow traveled back in time 5 months.

1500 reached. It's really fascinating how many games you win just out of the opening.

Hi! It's great to hear that you're improving and have set a goal for yourself in blitz rating. To achieve your goal, I would suggest the following tips:

1- Consistency is key, try to play regularly and maintain focus during each game.
2- Analyze your own games to see what went well and what you could have done better.
3- Study openings and endgame positions to improve your understanding of those phases of the game.
4- Watch live blitz games of top players to get a better understanding of their thought process and decision making.
5- Practice tactics regularly to keep your tactical skills sharp.

Regarding the YouTube channels you mentioned, you can also check out IM Jeremy Silman, IM Danny Rensch, and IM Levy Rozman for more tips and insights. These channels have a wealth of knowledge and will definitely help you improve your game.

To get better in long time control ? Yes certainly but to get better in blitz no, you have to continue to practice blitz (not necessarily only blitz but also practice blitz).

Afterwards [from my point of view] setting an elo goal is not a good idea and I would say that we should not care about the elo as such even if it is useful to increase the probability of not falling against an opponent who is too weak or too strong.