Do NOT say “oh, I was spotted to play 2…Nc6 then 3…g6 in that opening. I’ll do that next time!”
Say “When my opponent moves their queen, make sure all my pieces are defended, and after that kick it if I can.”
Do not JUST use an engine. Engines cannot tell you things like I said to help you improve. It only tells you how good your moves were and what the best moves were.
This is important: even if the engine tells you what the best move was, learn from it.