A rewrite, using Feeling words: if you feel happy, content and fulfilled, you will be better able to do the things you have to do. If you believe that doing those things is likely to accomplish a goal you have, you will be better able to motivate yourself to do them. If you cannot bring yourself to do what you have to do, find something which will make you feel happy, content or fulfilled; or if you cannot do that, play Tetris or whatever which will at least take your mind off the guilt, until it comes back worse later.

What will make you feel fulfilled? What will make you feel that doing the task you have to do will make achieving your goal more likely?