Do you think that if you spend your energy trying to make other people happy that you'll end up making yourself happy? That kind of logic won't work today. If you want to be happy, you've got to make yourself happy. It feels good to come to the aid of other people, but you won't get a true sense of self-nurturing unless you do something selfish today. Carve out some time to treat yourself to something you want, and don't feel guilty about it!