When you accept yourself, be satisfied with yourself, when you allows yourself to do something. That means that both your mind and body are going in the same direction, there is nothing you can not do.
There are times when you want to do something but your body is lazy or tired, there are times when you do the work but your mind thinks that it is what you want to do or not. And finally, there is no good thing to accomplish.
Finding something that makes you wholehearted to make it to the end.
that's hard.