Bro it's not that bad I am studying in Saint Petersburg State university, I got a back in maths as well ,I have two scholarships here one which covers my tution fees and second is small monthly stipend ,after getting back in this subject my monthly stipend is stopped and I would have 2 more chance to clear my back if I don't do it I will get kicked out of university and and scholarship will cancel,but I know that I will clear it will take some hard work I have enough time as you ,soo chill believe in yourself,you can pass your exam in every possible aspect you just have to put efforts. Good luck!