Chess Game Annotations

A person advised me to annotate my games and post them here for advice, here’s my first attempt, any tips on strategy/tactics or how I should view my games? It was an opening by black I wasn’t familiar with and I had to force a draw at the end. I already used my free analysis of the day so I didn’t have an engine analyze it. Link below-

Check out this #chess game: NopeIWin vs sudokumon - https://www.chess.com/game/138112390722

1 Often go for the Catalan

4 Trying to develop

5 Blocking Kxf2

8 Mistake, O-O is a better move, my king is exposed

9 Is Bc2 a better move here? Both put pressure on the queen, and I wanted to keep the option of Bb2

19 f4 Would have been a lot better to make space

25 Qd2 would have relieved pressure and protected the f2 pawn

I honestly lost what I should do after about move 21, I should have developed my b2 bishop and controlled the e and f files with my rooks.

Is this how to annotate a game? Any tips on my process or my game is appreciated