Regardless of rating, you should be analyzing your games to prevent repeating the same mistakes over and over. The problem comes down to HOW to analyze your games and how not to do so. There are many opinions on this and I believe your rating level is one component of this because a "regular" chess players doesn't have to strain with deep analysis like a top Grandmaster would
If around 1000 chess.com rating, or less, then I'd review your games to scan for hanging pieces (undefended things which can be taken for "free") and if you analyze with the chess.com computer analysis/game report, then focus on the "Blunders (??)" and "Mistakes (?)."
Don't choose one move or discredit a move just because the computer likes one slightly more - it is more important to try to put into human ideas why you think the game blunder/mistake is worse than one of the lines suggested. This takes practice and experience to refine, but analyzing your own games becomes easier with time
What you want to AVOID is trying to memorize all the moves the computer calls "Best" because chess is WAY too deep in possible move combinations to remember them all and besides, the computer actually changes its mind on the "Best" move when it runs a deeper analysis/changes analysis depth - especially so between moves which are close in evaluation.
Feel free to message me if you have any questions on this or anything else chess related. You can even message for something else if you just wanted to chat etc. We might even try a few unrated chess games if you want some tailored advice from whatever I observe, but this blog article I wrote is a great place to start
https://www.chess.com/blog/KeSetoKaiba/opening-principles-again
Hi all, just wondering ur opinions on analysing games, should i be analysing my games? do u analyse ur games? I am pretty much a beginner, rated around 550 rapid, been playing off n on for a few months, my win rate is about 50% giv or take n i play jus for fun, dont wanna compete in tournaments or anything like that, no aspirations of bein any kinda top player, wud like to get a semi respectable rating on here...maybe 1000-1200 (i know thats garbage to a lot of u guys), i wud be pretty happy with that n like i said i jus play for fun so is it necessary to analyse my games, i dunno if i wud get a lot out of it and it feels very time consuming, do any of u jus play for fun n not analyse ur games? is this more for the serious chess player? i keep hearing that i shud analyse my games if i want to improve is all so jus curious to everyones opinions n methods on this?