What I like of playing chess and some games of hive chess

Hello chess lovers! I spend a lot of my time playing chess. I am 18 years old and have been playing since I was 6. If I have to say something, I like to play chess because there is always something new to learn, whether it's a small or big thing. Here are some of my games from the Hive Chess Tournament.

what is my favorite repertoire in chess?
My favorite repertoire in chess with white is the king's Indian and king's pawn; they are very good openings. With black, I have liked to specialize in the petrov and the king's Indian against d4 since I consider that it can be played against most moves on the queenside, and it is important to learn to play with fianchetos due to the large number of positions that can be played derive.

In this position my opponent played Qd4 and this is a bad move because Nf3 gxf3 Qg3+ Kf1 Qxf3 Bf2 and Qxf5-+

https://lichess.org/TSgxDO9u/black#43

I made a horrible move when I played pawn f5 in chess960 this time. Can you see why?

My opponent pushes on with Qb3, and I lose in a few moves due to the pawn on b7 and the double danger in Rg8.

And finally a chess exercise