How to Get Better at Playing Chess?

Usually, to play chess better, one should first of all know the chess rules, have good logic, and be able to think strategically. Most of the time, of course, it is not enough. You also need to know the chess openings, chess endgames, and chess tactics. And, of course, you need to practice a lot. First of all, let me talk about my chess knowledge. I have pretty good chess knowledge, no matter that I learned it by playing chess on my own. I gradually increased my level of play on online platforms like chess.com and lichess.org. Currently, I have an approximate Rapid rating of 1400+ and performance is above 1500, which, while low, is a pretty good result for amateur chess players, especially for someone who is a computer science student and plays chess in his or her spare time, especially given how infrequently I play chess. But still, I mostly play puzzles at lichess.org, and I have a puzzle rating of 2200+. When I entered university, I knew my chess skills had deteriorated because I ...