Damn it man! I know exactly what you are going through. In 2004 went for the season opening (first snow in October) in the Carpathians. After walking up the mountain to about 1500m, I started riding my snowboard on a really really difficult track
After about 15 minutes riding, I missed a turn and rode into a bloody tree feet first. The result: broke my tibial malleolus into pieces.
I underwent 2 surgical procedures and walked with crutches 4 months plus physiotherapy to regain the flexibility.
I had to miss an entire season of snowboarding just because I wanted to go on a track I've never done before. But as you said, you don't think about these kind of stuff when your brain is packed with a mix of adrenaline and dopamine.
Get well and hope to see you on the water soon!