never look back
1. To show no sign of returning to past circumstances. Once I graduate high school, I'm leaving this town and never looking back.
2. To progress without interruption or impediment. When we began this company, we just stuck with our dreams and our plans, and we never looked back.
never/not look ˈback
(informal) (after a change of career, etc.) become very successful: She hasn’t looked back since she started her own business five years ago.He moved to New York and never looked back.