If we were trying to stay clean and had a fall, we must realize that we haven’t lost anything that we gained until now. We simply have to get up and continue from where we left off. The Steipler once told someone who complained to him about how difficult this struggle was, that the times we fail are erasable, but every time we pass a test is a Kinyan that's ours to keep forever. Even if we are successfully misgaber (overcome) only once in a while at first, this initial hisgabrus will ultimately lead us to break free completely.