Becoming distant from friend

Lately, I've been very stressed out with school, home, and all in between. I have to maintain high grades in school because of clubs and as a student council officer, but this semester, I'm close to failing the marking period for math. I miss class so much first period because of activities, that and I can't concentrate since its so early in the morning ( insomnia doesn't make it better!) . I don't understand many things, but I'm too afraid to ask. Kids in my class are very judgemental, and if I ask a single question, I'll be taunted and bullied, which is the last thing that I need

My friends have been noticing my changes in attitude and behavior. They keep asking why I'm so distant, irritated, rude ( as a joke, because they always say how I'm too polite). I feel sad when I'm with them, and after a conversation I had with my best friend, I feel like they're only my friends because I'm a clumsy fool, a pitying case. I still don't understand the concept of friendship, as it appears. They've made me who I am, the part of me that I hold a small amount of pride within, but now, I have no clue.

I fear the future for us, as high school will rip us all apart. Next year, I'm probably going to be alone, something I dread so much. How can I connect with them, is there any way to make them understand? Also, how can I reach out to a teacher to help me, or even modify my work without going too into depth of my situation?

Is there a teacher or some other employee at the school who you like and trust? I would ask them if you could talk to them at a certain time - and, really, you could just print out this post here and bring it in for them to read. It's a good, short summary of where you are right now and where you could use a little help.

I don't understand the issue in reaching out. You don't need some grand excuse to reach out to a teacher. You simply ask them for help because you're struggling. *end of story* I don't mean to be rude, but it really is that simple. Teachers aren't there to judge your reason for struggling. They are there to help you.