Do I have any hope at passing Business?

This next week is a write off as I have a 15 hour photography exam spanning over three days so I’ll be drained out, but I have 4 weeks from now until my first Business exam. I’ve never done good in the subject I just don’t understand the content at all, I do revise but there’s nothing I can do to improve, I get U’s and E’s, and about 2/20 or 1/10 on those mark questions. My teachers useless, she’s never given any help or revision sessions to our whole class, she stopped teaching content in November and ever since we’ve been left to our own devices. I’m even being withdrawn from the class as other teachers have noticed she always victimises me and targets me over any other students, they suggested pulling me out for my own benefit so I can work on business revision myself as she has 0 input and is always horrid.
Is it possible to go from an E to at least a C in 3/4 weeks? I get about 20-30 marks most whenever i’ve done full past papers so far.
Any suggestions or answers is appreciated as I am desperate, my teacher is useless and there’s no other business teachers in the school I can go to for revision help.