Can anyone explain this? I'm new to chess

I move black pieces, Opp- white

I didn't know what move to make after I moved king h4+. Can anyone tell me what mistakes I did? I want to learn.

It looks like you disregarded your opponent's attacks on you. Try playing more 10-minute games, or just play daily games where you have time to look at your opponent's threats. It may take time to scan for attacks and threats, but once you find them and stop them, it will be very hard to lose games.

I understand what you're saying and also it wasn't a checkmate, I lost to timeout because I didn't know what move to make after my king attacked by a pawn and it wasn't a checkmate? idk man

Ooooh, I understand what you're saying. You had a special move called "en passant". You should do some research on it, it's a really sneaky move.

you're right I should play more games. Thank you Sensei.

After the move pawn to h4+ it's is not a checkmate because you can capture the pawn using the En Passant rule.

https://www.chess.com/terms/en-passant

De nada.