I'm working on a picture right now on photoshop with a regular psd file. And for some reason the file is fucked up.

I can't select any color, it just selects white. When i try to paint as black, it's a weird red that is painted, when it's white nothing shows up.
I can't choose any image mode, in fact when i try to do image > mode it doesn't give me the possibility to see any available mode if it it was an option unavailable.
I can't copy the layers and paste them elswhere, it's as if i'm trying to copy oaste blank canvas.
And yet all the drawing and colors parts can be seen normaly.

what
the
shit

how do i fix that bullshit

Edit : solved thanks to someone, nvm !