Continue learning. At the very end you played very convincingly, but during the game you missed several winning moves and twice spoil endgame to a draw. And mainly 37.Kh2 was an absurd move, you need your king in the center at the endgame, not in corner.
OK i know you played Kh2 with the idea of exchanging your relatively pasive bishop, but in fact in case of 41…Rxe3! 42.fxe3 a5!! White is the one fighting for the draw (not me but engine).
Wow, I did not see that! I had thought my king would just eat the black pawns, but I checked the engine and black just sets up a blockade with his pawns on e5 and h5.