I'm sorry about the challenges you are facing as a result of this accident. I think the sooner you get some expert medical advice and treatment the better. And as you mentioned, cutting back on your study load might be a good option at this point.
Of possible interest, I drove a Kawasaki 500, at the time advertised as the fastest street production street bike, though my junior and senior year of high school. Although I was mostly a safe driver, looking back on it, I think my parents exercised poor judgement in letting me drive it as I did check out the top end speed of this bike on a lonely road once or twice. Never had an accident, but one day I was on a 2 lane highway, slowing down to make a left turn across the other lane, when I noticed a car coming up fast behind me, moving into the other lane to pass me. If I had not been alert, and turned left, this car would have killed me. On a 50 mph highway, I had to come to a complete stop at the turn point. The lesson which I assume you have learned if you ever ride again is to conduct yourself like everyone is trying to kill you, although I realize that having someone turn in front of you at some place other than an intersection, could be unexpected. If it's not on all readt, riding with the headlight on, helps with visibility.
When I went to the University of Miami (Miami, Florida), I strolled into the Engineering Dept to see a display wall of broken motorcycle helmets and accompanying newspaper articles. The one that got me was the guy who flipped over on his motorcycle, it landed on him, did about $100 damage to the bike and turned him into a quadriplegic. I called home and told my parents to "sell the bike"... Since then I did buy and ride a motorcycle 2 other times, but I felt uncomfortable on them, selling them after short periods of time.