Am i stupid? I don't understand why i only have negatives in the new 'daily puzzles'

I really liked the old daily puzzles, the new ones feel wrong.
But right now it's not about that. I only have negative scores recorded (or so it feels). When i solve the puzzle i have "+0" and i don't see that puzzle in the graph, but if i don't solve, i have a negative score and it is recorded.

What gives?

You must training with puzzles. I have not problems with it.
I had +0. Maybe it is a new one idea of Lichess.

You have to solve it on first try to get + score.

You can only get points against puzzles that you've played by going to lichess.org/training . Daily puzzles, and selecting the puzzle that you want to play by going to lichess.org/training/<puzzle ID> will not affect your rating.

Yes. Just train.

But yet i get negative scores when i don't solve...

I concur. New puzzles are boring and repeat themselves.

"+-0" that one sees is to rate the puzzles, and since they're so bad now, people have already voted them down, so you can't vote them down any further.
I would suggest to remove puzzles when someone votes them down from 0!