Focus.

“Move forward,” he says. “This never happened. It will shock you how much it never happened.” - Don Draper

Maybe Don Draper is not the best person to be getting quotes from, but I believe he has a point here. :)

The key word here is shock. It will shock you how much these past habits never happened, because it is in the past. The mistakes you've made = erased. Everything happening in the present moment and beyond are all that matters.

You're a vagabond, carrying only the tools that will propel you to the future you envision. Everything else, is not physically with you, so leave it behind.