First thing is to spend more time looking at the games you lost instead of the games you won.
You were up by a full piece pretty early in that game and then soon won another piece.
An excellent move is defined as a small reduction in your winning chances by the site. When you are two pieces up, it usually doesn't matter very much.

so in this game, i got 95.2% accuracy. also this is one of those openings that i have worked on in my last 2 3 months of practice. in my other games you will find my accuracy to go down to 60-70% too as i dont know many traps and opening moves.
Can someone please tell me why i have those 13 excellent moves and why the engines consider them as second-best moves? the review and analysis is not that much of help because the reason it gives for some moves makes no sense (at least for me).
Also how do you think in a certain position. my problem is that i dont know what to think of in the middle game. mainly i play moves based on my opponents moves. i am unable to find the best moves. i mostly get excellent moves but if my opponent is better than me, they get advantage playing more best moves than me.it would be very helpful if someone could explain how they think when they are in a middle game. how long should we retain our control in the center or when to launch an attack and also on which side?
it would be very helpful if anyone replies. thanks in advance. feel free to type as much as you want as a detailed answer would help me understand better.