I like the idea of starting over, but I also feel that if you don't address the issues that got you where you are, they will just follow you to wherever you go. If by starting over you also mean really working on yourself mentally as well as physically, then I'm all for it. But I don't think moving to a new place necessarily makes it easier to "start over" as you still have to live with yourself. But it's definitely never too late to start taking a new perspective on life and trying to work on yourself for the better. That can include things like going back to school or switching careers for sure.