Just to my last point as I'm still learning too, this is a game I just had, you can see how keeping the pressure on the opponent can work wonders (checks, captures, attacks...), not all my moves were optimal but I got an accuracy of 94ish. Opponent tried a mate threat with their queen and bishop but by turning the threat on to their queen I achieved a winning position by being whole piece up. Opponent also threw away their e pawn, if they move a piece into danger and you can see you can safely take it then you should. Just be aware of any vulnerabilities you can create for yourself when moving your pieces (is that piece you're going to move a crucial defender of another piece?). In the end the opponent blundered mate in one.
look for checks, captures and attacks (in that order). First see if you have any useful checks since they are the most forcing moves and require a response from the opponent. Not all checks are good though, if they have an obvious good response then don't do it. Then look for any pieces you can take safely that will improve your position on the board, maybe you can damage their structure or maybe they left a piece completely hanging! If nothing, look for ways in which you can attack the opponents pieces, the bigger the threat the better, it's pretty nice to force moves from your opponent which could weaken their position in other ways. Also if one of your pieces gets attacked, you can respond by attacking one of their more valuable pieces, if they attack your rook but you have an effective way to attack their queen then that's going to be a good move. These are some of the things I've learnt.