Fight for your rights to have an interpreter. I am serious. Get in their face about it without flying off the handle.
Otherwise, if you don't have high literacy skills, I am talking about five to six grades ahead of what is expected for an average person your age, and a desire to survive, it is hard to meet the needs of the education system and go to a post-secondary school of your choosing.
"It is my task to convince you not to turn away because you donít understand it." - Richard Freynman