A little thought...
When in a relationship with God: don't try, just do and stumble. When we try, we are attempting change for the better in our walk with God. However, when we fail in our attempt, we seem to beat ourselves up because we can't seem to change.
On the other hand, when we do and just stumble along the way, we have already made the mindset that we have changed for the better. Then, as sinners that we are, when we stumble we can more easily get back and can continue our walk without a moment of confuddled fustrations in our shortcomings in being a fallen being.
Basically it boils down to this: We are not perfect beings. If we were perfect beings we would be of a divine existence, but we are not. In the end, do your best and know that you cannot change before knowing God but you must know God in order to be changed.
But! Don't take this as a being automatically redeemed and when you stumble go, "It's okay." Salvation comes to you immediately but you must also strive for it as well. It's one of those paradoxical ideals.
Then again, maybe I have no idea what I'm talking about.