Mouthpiece - With This Regret lyrics

I've locked my only exit, I've done this myself. I want to go back, start it over again, But I'll just waste my time with this regret. Nothing I can do, just try to move on, If only my conscience would let me, but there's no chance of that, So I beat on myself, break everything inside. Scratch at the walls, make my nails, empty myself... Then I rebuild