I think if you sat yourself down and weighed up everything you did for everyone else, you'd see why you are feeling a little flat.
Of course doing things for others is immensely rewarding, but try to look at this through a childs eyes, totally black and white thinking...
Is feeling USEFUL something that makes you jump for JOY? USEFUL is not a very exciting, emotive or happy word is it? It's utility, fit for purpose, does what it says on the tin.
USEFUL is Not exceeding expectations, vital, needed, desired, wanted, adored, striven for, ambition is it?
Please take some time to allocate yourself a little FAB-Time. A massage once a month, a pedicure, your nails... When was your last hair-do?
It's so easy to get stuck in the treadmill of others, and you are to be admired for doing so much for so many. But who is caring for YOU?
New Years resolution/challenge, starting NOW. I want you to think of something you haven't done either ever and always wanted to, or haven't done for ages that you could arrange fairly easily.