I don't want to sound preachy, but having felt nearly identically to what you've described in #4, I can tell you that I've found my answer in meditation. It's allowed me to slow down life and realize what's really important. It's hard to get caught up in those ego-driven things now that my sense of self and ego has so inexorably changed.
glad meditation has helped ya -- i think everyone gets different things about it. It helps me slow down and be more present instead of worrying about all those career things. It makes me feel a little more connected to the world. It helps me reflect on who I want to be.
It has also helped with my posture too.