I'm going to school next week and I'm afraid I will get these commands and feelings/urges to hurt someone! Or lose control! In my head it feels light like if I will lose control...

I get these violent urges thats started randomly and now i feel like ill hurt someone it feels impossible to control almost gets me shaking

Intrusive thoughts are supposed to be unwanted but when I’m mad I’m saying out loud “ I wanna stab them” and I feel rage. That doesn’t feel like ocd anymore I’m stressed and my brain also wants me to cover my dogs nose and suffocate him . I’ve covered it before and got anxiety and I’m scared I acted on an intrusive thought by doing that so I’m just psycho I guess about to snap

Why is my mind saying I should say my thoughts out loud and that it will be ok, I don't want to because it goes against my beliefs and it freaks me out because my mind is like you've done this and this an other bad things this can't hurt you, saying it will give you peace and it just randomly started yesterday and idk what to do. It's like I have no will power to want to stop it's like my mind wants me to say it and idk what to do.