I tried to study chess theory and got so much worse

So about a week ago I decided I wanted to start playing chess more. I’m a beginner but I understood the game. I started playing people, doing random *** [Edited by mod] that made sense and I was winning a lot. Today I started watching the lessons videos and now I am playing so damn bad. I don’t think I’ve won more than one game, and my overall elo is tanking. I just keep making huge mistakes and I don’t know why. I develop my pieces very well, usually better than my opponent. After that, I just start taking L after L until I’m forced to resign. I’m not sure what to do, I just want to enjoy the game and I’m getting pummeled and literally bullied by these people who I know I’m better than. What do?

I agree, something that you can also try is to play against the computer (at a level you feel comfortable with) in a custom game and enable some options like takebacks or hints, just to progressively recognize some mistakes-blunders.

Improving Your Chess - Resources for Beginners and Beyond...

https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond

https://www.chess.com/blog/RussBell

Same bruh😭🙏

Maybe give an example of where you applied the theory and things went wrong. It takes time to learn to apply it properly.

Basically u guys are just sore losers :/

When you learn something new, you may initially struggle as you attempt to apply your newfound knowledge.

Do not study opening theory. Not even a little bit. Study opening principles and how to apply them

this is very normal in the very short term. your play is trying to overcompensate so you force things that are not there. Dont fuss over it and persevere.

sure. i will try to make it unrated match so that you dont lose any rating. maybe i can give tips

I took a look through this game of yours and I have a few notes:

• You keep moving the same pieces multiple times. Try to move a piece once, and only once until the rest of your pieces are developed, unless you are avoiding a threat or taking an opportunity to capitalize on your opponent's mistake.
• You have too many pawn moves instead of piece moves. For example, look at move 4, where you make the move 4...f6 to defend the e pawn. Developing your queenside knight to c6 would have done the same job, and aide in your piece development.
• Try not to double your own pawns unless it's for your own benefit. In move 10, you play 10...b6 to take back after a trade of bishops, but you would wind doubling your pawns on the c file. Instead, you should have taken the bishop, which would force white to double their pawns on the e file, as well as take a pawn away from the defense of the king.
• You play 13...Nd2, blundering your knight, though I see what you were trying to do(there was a revealed attack coming when the bishop trade happens). Just try to pay more attention to where you pieces are going, and when doubt, remember that knights can go backwards!
• Again, development; 16 turns in and your entire queen side is undeveloped, and then you lose your rook to a revealed bishop attack (don't feel too bad about that one, the best of use have lost a rook or queen to a bishop on the opposite corner of the board that we forgot about)
• You wind up winning the enemy queen, but a losing a rook, knight, and bishop for a queen is not a good tradeoff.
• There are times like move 20 that you miss a hanging piece. Don't panic just because your queen is under attack; look at the board, all of it.
• Move 32: be very careful about your queen sharing a rank, file, or diagonal with your king, easy to lose it that way.

Overall you seem to have some grasp of what you're doing, you just need to practice, and above all go over your games afterwards to learn from your mistakes. You might know the fundamentals academically, but it takes time to recognize them in the actual game. Also, watch lots of pro games with commentary to get an idea of what good play looks like.

Maybe after watching the lessons, you started thinking too much (or too above your skill level) and moved away from your original style. I can see that as a reason you were losing so many games after the lessons. Perhaps add/change one concept at a time and play with just that one change for a while.

The chess.com lessons seem to be all over the place...I'd suggest looking at introductory books on endgames and tactics first.

Opening fundamentals are fine, but anyone below 1200 rating should be totally focused on tactics, tactics, and then tactics. Most beginners lose by hanging pieces, not seeing the opponent's tactic, etc. If your tactics are good you will get material advantage, and winning becomes much easier.

Don't worry this is completely natural. It takes a while to consolidate all the new knowledge you've learned so your performance dips a little. You're now having to think more and notice things in your games you were previously blind to. This leaves less attention to notice things you previously might have spotted easily. Until those ideas are internalised it will feel like a struggle.