Part1
We have no choice but to relive our past until we are present enough to see that we are about to do so... and then, have enough presence to step off of that time line. Otherwise, we will continue to run in unseen circles.
Part 2
Here's the real reason why the idea of "starting life over" rarely -- if ever -- actually leads one to realize a truly New Life: for most of us, the whole idea of "making a fresh start" begins with having imagined ourselves crossing some equally imagined finish line. But, being new has no finish line, so that any race that starts with one in mind... has been lost before it begins.