DJ Career Won't Advance

I have this happening with several of my characters that I’m now considering just retiring because I can’t get their careers to advance/finish same as you and nothing has worked. I even switched careers and went back to the stuck ones and they stay that way. I stopped playing after I spent so much money because I was so frustrated cuz now it’s 3 of my sims that can’t finish storylines….so what’s the point now?!