In my mind this is very dangerous thinking! Sure, you don't want to backslide. and if you backslide enough, you will be done. But, if you are thinking that "one wrong move, and it's over", then you are already done anyway. You can't do the things you need to do for yourself if you are thinking that way.
You need to consider your actions, and attitudes. You need to think before you act, or talk. But DB is more a way of living than a set of steps, even if the books try to make it look like it is steps.
Are they treacherous waters? Yes, they are. But there's more than one way through, and more than one ending. One wrong turn is not the end.
