Why do I play terribly in-games?

This has been a big problem for me lately. I love chess a lot, I watch videos, do private lessons with coaches online, do puzzles a lot, and I always enjoy myself when I do anything or hear anything related to it. Whenever I review games, do online lessons, watch videos, or do puzzles, the things that I learn from them make sense to me. And when I do chess related things I feel like I’m a good player. But when I play an actual game, it is totally different. I usually play quite long games, but I make the obvious blunders ever. I fall for extremely basic tactics, and I always review them after, and in that moment I understand what I did wrong, but my terrible moves in game never change.

It looks like you won your last 9 games.

I guess they were unrated but they were still wins.

In rapid games, you have won 82, lost 21 and drawn 4 games in the last 90 days.

I don't see anything to complain about.

I don’t usually use chess.com for games. Those games were just for fun against my friend, who is a beginner and who I’m trying to teach some stuff to. This pretty much started after I did an otb club yesterday, where it was 15+10 and when I made a quite obvious blunder and before I did, I was still thinking a lot (I had 1 minute left at the end of the game and my opponent had 13 minutes). The problem is my moves during the games where I make obvious mistakes

Aoooooooooooooo

I think this might be due to tunnel vision. (tunnel vision is when you only look at one side of the board or focus only where you played a move.) Before you play a move, think to yourself if any tactics are available or any pieces could just take a free piece. Dont be playing blitz, btw. Play at least 10 min games

What i just said.