I have never been in a situation that I needed to start over with my life completely, sort of speak, but there were times I had to and wanted to start over in some other segments of my life, specifically, with people.
There were several occasions where I wanted to start over with some people I met in a certain place or in a certain time since it didn't go very well.. But, since I believe that you can't change your destiny and that you can only change the time and the place, but not the final point of it no matter how you play it out, I didn't really do much about it.
Wiping the past clean isn't something one's able to do easily. However, every day is a new day, I guess. Hey, at the end of the day, what needs to happen, it will happen.