Welcome to the Forum
@Terrible Johnny . Most people don’t have such a dramatic tale to tell upon entry, but I can certainly understand that you now have both more spare time to sit and type, and more questions about what everything is all about.
As is custom here for newbies....
Have some yummy food!
These are Nanaimo Bars. They are all that and then some. Unfortunately, unless you live in the northwestern US or western Canada, you are unlikely to encounter them.
Now. Back to your OP.
Looks like the orthopedic surgeons (medical carpenters) had fun with you. I’m glad your spine stayed intact, and you only had a minor contusion to the brain. “Lucky”.
Especially ‘lucky’ since you say you were NOT wearing a helmet
When you get better, remind your mom to smack you around for that one.
As an agnostic, I recognize that even if there is a Supreme Being, our ability to discern whether you ‘got lucky’ or ‘were saved’ (at least physically) would not be something a mere mortal could tell.
More important is ....
what are you going to do now? Your name along with your avatar (presumably a selfie, with your face x-ed out), along with helmet-less motorcycle riding, and your statement that you “definitely was no saint”, all suggest that you perhaps had issues to work through even before the crash.
Either way, I’m glad you survived.
I hope that you recover well and quickly.
And again, welcome to the forum! I hope we see more of your posts in the future.
PS - Do ALL of your physical therapy exercises. Bolting together bones is one thing. Regrowing tissues is entirely a different matter.