OP is at a tender age at which lifelong emotional scars can occur. OP’s situation appears to be quite serious. I do not think that,for example,a soldier suffering from PTSD should remain in a war zone. While the war & the soldier’s service will pass with time, any harm is likely to be compounded by remaining in the same environment.
OP: Do not be afraid to attend school elsewhere. It would not mean that you are a failure or that you are giving up a once-in-a-lifetime chance; it may indicate that you are facing reality and dealing with life in a manner designed to help you minimize further emotional & psychological harm while enabling yourself to heal faster.