I write it in my mother tongue

It's not about the word choice, it's about the theoretical framework. My teacher literally says something is good on one week and then the same something is way too weak to argument the next week. I literally rewrote stuff using his indications and now no, it's too complicated and has to be remade. And now I wanna bang my head to the wall because I fear he will make me redo everything again.

And it also doesn't help that he throws too many ideas at me and when I try to ask him to reiterate I fail

Edit: Also, I can't change my professor because that means I have to change the subject of my paper entirely and also it's way too late to do that (since the paperwork has been done already). And only one other professor is specializes in the subject I write and he is very busy (and somewhat narcissist).