Why would you want a fresh start? How would you do it?

We all have our own current situations, so the answer should depend on those circumstances. What, in your current situation would make you want a fresh start? What would you have to do to get that fresh start?

I am particularly interested if it is a personality change you are trying to make happen. Maybe a different outlook on life. Maybe a new way of seeing yourself? Maybe just a hope or intention, but you have no idea if you can do it.