if you haven't got game reviews because you're a cheapskate like me, or don't think it offers value for money, then after your games, click on Analysis, press the arrow keys going through each move, then look at what the Top Engine move was each time, it gives you the top engine move on the right hand side of screen under 'Evaluation/Lines'.
For example, in your last game you lost in 6 moves, on the fourth move you played D6, (pawn to D6), the engine says the best move was NF6 (Knight to f6), though it shows the pic/image of the knight rather than the letter. It will help you not to make the same mistakes again in the same position. Sometimes after pressing through each move you have to wait a bit for the depth to reach 20 though you can change that in the settings.
chess can be a difficult game I tend to go from 900 down to 600 and stay there it can be hard