I would have picked a different major...although at 18 I wouldn't have chosen anything else.

I would have taken the full time job offered to me by my previous part time employer.

There are many things I would do over.........But, these are the top three that come to mind often:

1) I wish I had gone through NPC recruitment my freshman year. Then, everything might have been different and that hell I had to go through might not have happened.

2) I should have dumped him when he was spending all that time talking to his ex. Then, I wouldn't have wasted two and half years on him.

I don't know that there's really anything else........ Those are the two things that bug me the most. And, usually, I go head on for everything I want.