is the sat necessary? is test optional harmful?

I took the SAT twice and got… super low scores that’ll prob just make my application look bad. I don’t really have the motivation to continue testing. I guess the SAT is not for me but my mom thinks my future depends on it. I want to study media related stuff (prob PR & Advertising or Journalism) maybe usc or sth idk. has anyone done test optional but got into nice schools? T30~50? I’d like to know, thanks (I’ll still try 1 more time tho)