Protect your joy any way that you can. That's really about all the advice that I have for you. Sometimes I feel small and insignificant blathering on about love like some Sunday school teacher boring the bejesus out of a bunch that came here for fun.
Of course I feel a little better about it when I poke around and I'm reminded that Tolstoy and Einstein and John Lennon did pretty much the same thing.
Oh, I've got a purpose in life. It just happens to be the same one that you have. My tool box is spare. I'll march and I'll protest and I'll play my music for a cause. Mostly I'll just love.