Whatever you cannot enjoy doing, you can at least accept that this is what you have to do. Acceptance means: For now, this is what this situation, this moment requires me to do, and so I do it willingly.
If you can neither enjoy not bring acceptance to what you do.....stop. Otherwise, you are not taking responsibility for the only thing you can really take responsibility for, which also happens to be the one thing that really matters: your state of consciousness. And if you are not taking responsibility for your state on consciousness, you are not taking responsibility for life.
Eckhart Tolle