10 years is too much. I'm 26 and am busting my ass to get a good GRE score, because I didn't care about GPA in college because I thought I'd never want to go to grad school. Left a comment for 18 years old to take college seriously.
Maybe. Just using 10 as an example. However, in 5 to 10 more years, you may have a clearer view of what you went through and why you made the choices you did. It sounds like you are still going through it and while I may agree with your perspective, I wouldn't put it in the same category of thoughts as those that have had time to marinate on the other side of the events.
