It's never too late for a new beginning! I say, start by setting some goals for yourself, i.e. new year's resolutions. The past is irrelevant, already over and nothing you can do to change it no matter how much you dwell on it. It's time to close the door, say enough is enough, and look forward. It's important to maintain a positive attitude especially when times get tough. Goals should be easy at first, simple enough to achieve, and once you gain more confidence, set tougher goals. Good luck!