I hear ya. I was the same myself. Somehow I have reached adulthood, without breaking any bones, no major burns, no blown off fingers, full eyesight, no permanent damage whatsoever. Which is not for lack of trying. I wish I had a time machine so I could go back to myself in my teens and beat some sense into me.
So I did a lot of terribly stupid things and this is not the worst I did by any means, but the one that left most of an impression.
At about seventeen I was at a party, I won't go in to why, but I was drunk and fell out a window. The drop was about 10 feet, but there was a lot of rubble.
Next day, I woke up, hung over as hell, and couldn't move from my bed. Went to the hospital, got x-rayed and had a fracture on one vertibrae. After a few days I could walk sort of normal again, but my foot was numb for years.
I've done things that should have ended in death or permanent injuries, but just got lucky, I guess. It is a wonder not more teens die, if they are anything like I was (hope they're not).
Now, I'm scared of everything instead