How do I not let it bother me?

So lately I’ve been having a lot of trouble in math. I’m a sophomore in High School and am currently taking Algebra II. For some reason I’ve been struggling terribly and my math teacher isn’t interested in making my time in her class any easier. My tutor that the school gave me doesn’t always remember how to do what we’re learning and he has to leave occasionally without teaching me because he has other things to do.

My mother and I sit down for 4–5 hours a night trying to get my math homework done and still I failed for a quarter for the first time in my life. I was 1st in my grade school and now I’m close to going to summer school for math. I just recently got my report card and my school had to make a big deal out of my horrible math grade and how I have 14 absences out of the 22 they allow you to have.

I’m somewhat of a sickly child and I suffer from depression and anxiety, so I have zero drive to get up and I’m always on the verge of tears just walking through the hallway. I don’t have many friends and I literally feel like dying just because of a trivial math grade. All of my other grades were 100’s except for a 63 for this quarter in math. Last semester I was able to get an 81 and a 70 for my two quarters, but obviously my grade is just getting worse as time goes on. My math teacher just seems to want to see me fail. I don’t know what to do anymore. Any advice would be helpful.