Hello

My question is, "how do I analyse a chess game & find out where my mistakes were?". Details-i have a chess engine n a chess gui on my computer. I play against the cimputer but after a game I want to analyse that game & see my mistakes but when I click "analyse", it goes on calculating moves upon moves & moves n then suddenly it stops. I look at d monitor & I'm like, "what does that even mean?", so please, how do I understand the analysis my computer is giving to me in improving my positional play & ultimately my rating?.

Is there a percent sign next to each of the moves? If there is then it is telling you all your possible moves and what the probablity of you winning is.