Jeff reflects on 3 years of experiences and priorities, thinking he was happy (but realising he was actually miserable) and doing something about it. He writes about the need for support (and sounds like he's very grateful that he got that from his wife), self-esteem, balance and ability to take risks (and a lot of other stuff that you'll have to read for yourself).
His post made me think of a time when I felt down in general and I felt bad about my job and future prospects, and I realised something: it's OK to feel bad. I'm learning from that and I still spend a lot of time trying to make myself feel better or avoid bad feelings entirely rather than accept the fact that I'm not always going to feel great, and just get on with things.
Jeff's post also highlights for me a need to be able to take risks:
Finally, the inability to take risks will keep you forever stuck in the same place.
Something to work on!