I got 9% on my physics midterm

Something else to keep in mind (while I'm thinking about it) is that physics is a weed out course often to get rid of the unmotivated. Put the work in and show progress. If you show immense growth between midterm and final, the professors are more willing to work with you. Catch them after they grade exams but before final grades are submitted and just talk with them respectfully. They may ask you to clean lab equipment or something over break but they're generally good people that want to see you succeed