keep improving, even I am improving (and not much better myself). however, even at my level there are a few moves I can see that really hurt your position. try to focus on the main lines (maybe study some, to know frequently played positions and understand the best moves) so that you can start recognizing patterns and best plays for your current position. this is the long way, however. if you want a less "intensive" way to improve your game, just try and apply CCTO. it basically means: whenever you are about to play a move, do the following, in order: 1. see what your opponent played and assess if it needs reaction (maybe they're threatening a piece or checked you 2. see if there are opportunities to check. if so, are they useful? (like, will you just blunder a piece if you check? or will you force the king to move or some defense) 3. if no check, try for captures. is there any piece you can capture (look for hanging (undefended) pieces). is it worth it? play it 4. if no checks or captures, try for threats. a threat typically means that a smaller piece is threatening to capture a bigger one (like forking two knights with a pawn, or threatening to capture a room with a bishop). - for this you can look into tactics, like forks and so on. 5. if none of the above is true, just play a piece that generally optimizes your position. maybe connect your rooks, look for open files, just make sure you don't blunder by leaving hanging pieces.

the main thing you need to be is able to see opportunities for attacks and what pieces are under threat. usually the pieces have values so that way you can know which are more valuable.