Seems like minor issues but it's getting hard to handle

I'm a junior in high school and life is getting hard to handle. The past months have been so hectic. My grandpa was hospitalized, my great grandma is having back problems, and i crashed my car so i have no way to get around other than asking friends for rides. I have many tests and finals are coming up as well. I have 0 motivation and 100 panic. to make matters worse i am in all honors classes, and if i dont do well on my math final i may very well fail the class, which would get me kicked out of national honors society, and lower my gpa. i have an orchestra concert coming up and our orchestra sucks. i have a band concert coming up and i just started to learn the oboe in the summer. i have never done a band concert with my oboe before and i am terrified. its becomming damn near impossible to spend any time with my friends because i am busy all the time. as a result i feel like im pushing them away always complaining to them about my issues so ive come to you, dear reddit. i also have to deal with work on sundays and i have the ACT on saturday. i just want this to all be done i am so overwhelmed so if anyone has any advice i would love to hear it please and thank you