When I was working (retired now) I used to get motivational tapes and listen to them driving back and forth to work. One was, "Take Care of Yourself, for You". It had me say that to myself. Also suggested this trick: Take two fingers, plant a big wet kiss on them, then wipe them gently on your cheek. Once you've given yourself a kiss like this, you have to feel better about yourself, and want to take care of yourself more. Try it--it does work. and don't forget to tell yourself, "Take care of yourself, for you."

Hope this helps.