We all make mistakes. The critical part is that you learn from them. Mary is correct, the "edjumication" system today has little science in it and has failed our society.
I was lucky enough to go to high school at a time when we had four different shop programs to choose from. We started out watching the "Ohio State Trooper" versions of shop accidents. That scared the living CRAP out of me and I remember one film every time I turn on my grinder...
A guy is making a "how-to" movie on using a grinding wheel when the wheel disintegrates. They had film of the doctors pulling rod out of the guys eye. That image will stick with you for life, I am here to tell you. Another was a guy doing a table saw film and on a test run they had the cameras going for, he had a kickback that shot a four foot 1 by 1 through his gut like an arrow. Think of that every time I turn on the saw.
They have proven in recent studies that male brains do not get fully wired until their late teens or early 20's. The very last part of that wiring has to do with consequences. The average male teen brain makes no connection between action and consequence. This is why boys are always doing insanely dangerous stuff, much of which they post on YouTube for everyone else to watch.
I was just an average kid. But somehow, the training I got in shop class stuck with me and has kept me safe. I did other stupid stuff like ride motorcycles with no brakes but, Hey! You gotta learn, right?
I feel bad for kids today. They grow up into middle aged people like this guy who had no idea what he was about to do would end his life.
Reminds me of what I told my daughter when she started taking flying lessons in high school. I told her they would show her a dozen ways to kill herself. If she didn't do those, she'd be fine. It stuck with her. Then I laid my biggest advice on her when she started flying instruments:
"While we
learn by doing...
We
remember by screwing up."
Some things in life are unrecoverable.