I preface this by saying every experience in life likely shaped who I am today, and I would never, ever go back and "fix" anything that resulted in me ending up with a different wife and child, as they mean the world to me.
However, that said, there were many, many things I did early in life that I regret and wish I could change...
- I'd go back to my self in sixth grade and tell myself that being good in school and making an effort is not a character flaw, and that the most important thing about school is the learning involved. Whether or not I tried in school had no effect on my social life anyway. The letter on the report card doesn't matter, it's what I actually got out of it that counts.
- I'd go back to my self in high school and tell me to just stop all the self-editing. Being polite has its limits, and just being talkative is a lot friendlier and less creepy than sitting quietly and alone in order to prevent saying anything stupid. Oh, and women? They're just people too, so it's OK to talk to them as well.
- I'd go back to my self in college and tell me to go major in Computer Science because I love it and not consider the "future wealth" of the career choice ahead of time and go into electrical engineering. Because guess what, me? That future wealth will quickly vanish as soon as you graduate as the job market crashes anyway, so you might as well be left with skills and abilities you enjoy doing.
- I'd also mention to my college self that if she cheats on her boyfriend with you, no matter how many years I had a relationship with her, she was just as likely cheating on you the whole time, not just at the end.
- I'd go back and tell myself to be ecstatic and not be an idiot when I learn she's pregnant, because that child is the best thing that ever happened to me.