Of course I don't play it against everything, I usually change plans when some moves are played and have different approaches, however, many people have suggested me to 'play open', and since I practiced the 2 knight's defense my win rate as black has plummeted.
I did pretty well with the Czech (55% won, 40% lost, rest draws), now I barely get a 50/50 chance. With white I do play with more initiative and have around a 60+% win rate.
I know there's a period of adjustment when changing openings, but I like the idea of playing a bit slower as black, let them have the center and then striking back. I'm often good at tactics so I made good counters or come-backs. With the 2 knights defense I find myself in chaotic games and never being able to develop tension in the center, most of the time games ended up being decided by who makes the least blunders which I don't like at all.
It kind of shocks me mentally as well, since before I didn't find cumbersome to play as black, now I'm beginning to assume I'll struggle.
Aside from having a lot of theory, why shouldn't I play hypermodern openings as a beginner? Unless I answered everything with it like a london system player I truly don't see the issue.
If you have any advice or any repertoire suggestions I'd be grateful.