(should I ever be able to go back in time).
No one cares. People are generally not aware of much that doesn’t directly concern or affect them. So take the level at which you think people notice you (your pimple, your mess-up, your whatever) and drop it to like 5%. That is the actual level of scrutiny people are actually applying to you on any given day.
Except Jason, but he likes you (surprise!).
Also, when you get to freshman year of college and you see those electric blue, too-high high heels in that thrift shop window — BUY THEM! Seriously, what was wrong with you on that one? Live a little.