I'm sorry to hear about your troubles. Glad you are ok!
*warning the following may sound preachy, sorry if I sound like a dick tldr ride safe, gear and training. *
I'm going to break this into <advice I took and credit with my survival in this sport> And <things I wish i heard/did when I crashed my overpowered sportbike 2 weeks in>
Advice I took
If you don't already have it:
Full gear (all mc specific)((helmet, jacket/pants, armor for all major joints and spine, boots, gloves))
At least MSF brc and full mc license/endorsement.
Real training at a track. Even if you don't plan to ride track. It helps.
Watch and read Twist of the wrist 2. Several times. Anyone who lives with you should recognize the intro scene to the movie. Fyc they are located here
Advice I wish I had taken:
Do whatever it takes to get into a bike with no more than half the power of a zx6r. There are many options. Anything in the 50 hp range with a single front rotor will beat any average car to 60mph, has all the fun of the zx at street pace, and better ergos. One option, also happens to be the bike I recent added to my stable, is a klr650.
Built like a tank.
Cheap. In every sense of the word.
Can go anywhere.
Very light feeling, and quite quick. It will break the speed limit on any road.
Simple to work on with very little to break.
Slow to anger. Will not punish as hard for the same mistakes.
Enough power to be fun, but harder to get in trouble.
300 miles per tank.
Ride safe. There are old pilots and there are bold pilots. There are no old and bold pilots.
I'm useless mechanically, except the most basic problems... Not reliable for those either.