I failed my Algebra midterm. What will happen?

I had B's in the cl all year and I didn't understand one thing after the 3rd quarter. I went afterschool for help one day but felt extremely uncomfortable with the teacher. He stared at my chest which was covered in a hoodie! It was so awkward for me that I refused to go back. I continued going to cl, attempting to do work, I took all the notes. I wasn't the only one who couldn't understand. Algebra is the only cl I have that isn't honors. It's college prep. I got a 49 on my final! My mom won't find out, she doesn't know what PowerSchool is. I'm just worried whether I'll p the cl or not! My grade now is a 74! :(