I know the feeling about not wanting to look at feedback when you know it's going to be bad but it can be helpful. Try not to see it as where you have done wrong but suggestions for how to improve. Teachers don't give feedback to attempt to criticise but to try and help you to do better with future work.

I agree with above too that speaking to your teacher in person might be helpful. They can give you more information about ways to pull up your grades or possibly make up some marks.