Above all listen to the doctors. We can share our own experiences and many of us have crashed bad but your doctor is your friend. I was only going 12mph according to Strava when I face planted on the asphalt . I spent the day and into the evening in the hospital. MRI twice due to bleeding in my head revealed 5 broken bones in my face including my left orbital bone which holds the optic nerve . Had that nerve severed I would’ve been blind in that eye. EXray revealed broken left hand. Serious enough but I was ok. I was told by the doctors that I saw for my recovery, that I was off the bike for 12 weeks(my hand doctor rides). I did exactly what they told me and it was tough but better than more damage. The specialist for my head injuries said it would have been much worse without a helmet and if I bump my face again before the bones grow back together, I could lose my sight in one eye. I am sorry for your injuries , it sounds much worse than what I went through. Advil worked for me.