Now I need to figure out what would make ME happy and I'm having a tough time doing it.
Have you considered doing some kind of volunteer work?
I know your son is still living at home and time may be limited. My D's are 19 and 16 so I don't have all the time I'd like for such endevors. Still, I've found it's been a really gooe way for me to put things into perspective and find what I want for myself.