How do I improve from here? I want to start learning theory but don't know where to start

I started playing chess in 2021, and I reached my current rating for the first time 1 year later. From there I've had periods of time where I reached 1500 rapid, or fell back to 1200. I played on and off. Some months I played 0 games, while other months (especially the first ones) I played A LOT. The thing is, it's kinda obvious right now that I pretty much stopped progressing with my "method" (=only playing games without studying). I'm open to start studying theory, but I don't know where to start. Could someone please take a look at my games and recommend a study route (books, courses, videos)?

videos I watch is from Gotham chess and HangingPawns

Learn and apply the most important principles of chess.
Always blunder-check your moves.
Solve tactics in the right way.
Analyze your games.
Study games of strong players.
Learn how to be more psychologically resilient.
Work on your time management skills.
Get a coach if you can.

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

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

Good Chess Books for Beginners and Beyond...

https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond

Ciao, ti ho inviato la richiesta di amicizia, se vuoi possiamo approfondire privatamente tramite messaggi

Try analyzing your games and figuring out where how and why you went wrong don't just listen to stockfish tho

I actually don't study either I just watch chess YouTube videos

@1

"I pretty much stopped progressing with my "method" (=only playing games without studying)"
++ Analyse your lost games.

"I'm open to start studying theory, but I don't know where to start" ++ Start with endgames.

"books" ++ Chess Fundamentals - Capablanca

Your forgetting that analyzing wins is also highly important you don't want those endgames getting sloppy and if you did a middle game poorly you can still improve but yes start with endgames

@8

'You may learn much more from a game you lose than from a game you win.' - Capablanca

I agree with that but that doesn't mean you have to only learn from what you lose from that doesn't mean completely neglect how you win tho

@10

Time is limited, so only analysing lost games is more efficient.
Moreover, people tend to forget what they did wrong in a game they won: all is well that ends well. The loss helps to remember the mistake.

People tend to do that but learning from only losses can only get you so far you have to figure out what to do right not just what they did wrong and how not to do it again but you have to figure out how to actually beat your opponent (not always requiring long analyse you can try to figure that out mid game )

Like I maybe review games for a min max maybe two it doesn't require deep analyse to figure out (most ) of what you did wrong unless it is a super super deep line