Tips to improve my chess I would like to get some advice on how I can get better at chess. I know that it's a lot to ask, but I would like an analysis of what I am doing wrong and in my games.  I would also like to know what I should do to practice, rather than improve the tactics or the endgame.

My Lichess ratings are as follows: 1760 for classical games, and 1900 for tactics. The latter is these days quite low but two months ago I peaked 2100. I intend to do more tactics puzzles these days until I reach again 2100.

I am quite good at my openings. Considering the last month, my average centipawn loss is 32.4, though it has usually been a bit lower (around 28). The ones belonging to middlegames and endgames are respectively, 68.2 and 35.3.

As far as endgames are concerned, I studied up to the middle of part six (corresponding to ratings:1800-1999) of the Silman’s complete endgame course, but I admit that I have not been able to test what I learned because most of the games I play are decided in the middlegame and if they reach the endgame, one side often resigns because of material imbalance. I know that I need to refresh this endgame material even if I have not used them so far very much.

Regarding calculation, I have, in my opinion, recently improved a lot as I make the point of finding candidate moves and calculate up to 10 moves deep.

I make the point of analyzing my games after I play them. First on my own, then with the computer and finally, I play the game on board again so I can see if I can use the computer‘s ideas in the game.

In general I realize that there are some  mistakes that I make that I can find on my own after playing a game but some middlegame and endgame moves are quite hard for me (not straightforward endgames such as pawn and king against lone king). Plus, I often cannot understand some mistakes (and particularly some blunders which “only” decrease my advantage by 3 points) that Stockfish detects in my games.

Here are some links to recent Lichess games of mine for you to take a look at for my requested analysis:

#1, 
#2, 
#3, #4
, #5
,#6

In case someone needs anything else to ask a more complete question, please do ask.
You may be able to get some help from the following tips. Not all of them apply to everybody, so you must be able to think for yourself in a critical way, picking up what works best for you!


First, forget about centipawns! I would suggest to remove computer engine assistance completely if you want to improve your game. The reason is that, more often than not, checking positions with the engine is like copying in an exam. It helps you get the right answer, but does nothing to improve your knowledge. I am not saying that engines are useless for chess training, but I am saying that it's very difficult to distinguish when they should be used. This results in often doing more harm than good (it may help you judge a bad move as bad, but for the wrong reason!)
Then, you need to work on your tactics. Puzzles and studies are great, but (of course, unassisted) analysis of your own games also plays a role here. I really doubt you can find candidates and calculate accurately up to 10 moves deep. If you really could, you would be a top-tier Grandmaster. Work on finding out what mistakes you are doing without even realizing!
Once you have a decent tactical skill (which you probably are close to having given your ratings and games), you'll need to work on your endgames and middlegame strategy. Get a book that covers topics like piece activity, central control/counterplay, weak squares, good/bad bishops, open files and so on. Don't just stick to the general tips. Instead, analyze illustrative games in depth to study how those concepts translate into practical advantage. Try to find strategical themes in your own games as well.
Last, but not least, every time you make a move, it must have a purpose! If it doesn't, then it's a bad move! If the reason is more of an excuse than an actual reason, then it's a bad move, too! (See, for instance, the ...Bxf3 mentioned in DM's answer. What were the reasons/excuses behind that trade?)


PS: If you can afford one, get a professional coach! If they are expensive on your area, go online!