Do you realize that, rather than regretting where life has brought you, you can accept that this moment can be your first step on the path to moving positively forward again in the direction of your choosing?
Understand that what has happened has no hold on this moment. Free yourself. Your current situation, whatever it may or may not be, is a perfectly workable starting point to live a life you see for yourself.
Beginning today, the life you have lived up to this moment may have been a disappointment. Yet, you have what it takes to begin again to do what must be done to get where you most want to go in your life.