Whatever it is that you’ve been sort of doing, dabbling in, getting by with, and managing just enough, stop. Either do it or don’t, because it’s all or nothing. An old proverb (possibly begun by Lord Chesterfield) reminds us that “Whatever is worth doing at all is worth doing well.
“I know your deeds, that you are neither cold nor hot. I wish you were either one or the other! So, because you are lukewarm—neither hot nor cold—I am about to spit you out of my mouth.”