Friends. Especially during high school. No one really understood why I was so cold and distant during some weeks, and then equally over-excited/friendly the next. Or why I kept disappearing for weeks at a time. I also made some very potentially dangerous decisions that still bother me extensively when I think about them. I wish I could turn back the clock and do it over..but I know I may still have ended up making impulsive decisions. There really is no use worrying about the past. We all need to keep moving forward and be the best we can be in the present day.