I go back to school on Tuesday, and I'm sick to my stomach

I go back to school on Tuesday, and I'm sick to my stomach This is my first post here. I am going into my senior year of high school, and I am extremely nervous about it. I have struggled with a severe stutter since I was in 5th grade. I was in speech therapy from ages 3-5 since I was born premature and didn't start speaking until much later than my peers. But that's about it as far as treatment goes. I am especially nervous about the first day, because that's when we have to introduce ourselves, and as many with a stutter know, having to saying your name can seem impossible at times. I don't know if this will be helpful, but I have been diagnosed with bipolar 2, as well as anxiety and am getting treated for them. I suffer from all three types of stuttering (repeating parts of words, elongating beginnings of words, and word blocks). However I suffer from word blocks most often. I start school on August 12 and I am extremely nervous. I have had nightmares about school almost every night this summer. My 1st hour class is advanced English. We have to present in in that class very often, and to make matters worse, most of the students in the advanced classes are kids I went to elementary school with. I am at a loss for what to do here. I am considering riding the bus to school and then making a run for it when I get off the bus. I was about to to it 4th quarter last year, but I didn't want to get in trouble for truancy. To be honest, I could care less about truancy at this point. I am at the end of my rope. Any advice or personal stories would mean the world to me. Thank you for taking the time to read this and have a good day