How near-impossible is it for the average well-meaning Christian to overcome the idea that, for all God loves us in our imperfection, His actual pleasure with us depends on how much we do? We tend to assume that God's opinion of us is identical with our opinions of ourselves; and, ironically enough, those who do the most are often the least satisfied with what they accomplish. Like the anorexic dieter living by the motto "I'll know when I've lost enough weight because all my problems will disappear," the workaholic may be adamantly convinced she's not doing "enough" when she's already gone far beyond healthy limits.
And the workaholic "doing all this for God" is all too often deafened to Jesus saying, as He said to Martha centuries ago: "You're wearing yourself out with worry, trying to respond to every perceived need, angry at everyone else for not making your self-inflicted burdens easier. I don't want your achievements; I want your attention." Our inclination to assume we instantly recognize what "must" be done--without consulting God first--is a quick path to overload and all the attendant frustration.
As the famous quote says, "We are human beings, not human doings." In the coming Advent season, take some time to just BE--to be quiet, to be relaxed and at peace, to be alone with God.
He will show you what to do!