Are you happy, well-rounded? (dealing w/ depression/lack of motivation)
S_A_P: I pretty much felt lost until my late 20s.  I finished college and worked at a few large companies, doing mostly unrewarding work and not really challenging myself.  By age 30 I felt I was at an impasse, and needed to either apply myself or drift along from job to job.  I think the final tipping point was the arrival of my first son.  The combination of wanting to do better and provide for my son was a powerful one.  I ended up losing 50 pounds, getting back to my highschool weight, and working on projects that interest me.  That was almost 4 years ago, and can say that Im as happy as I have ever been.  For me, exercise and enough sleep are crucial, I can get depressed and demoralized without both of them.  I dont know that this will help you, but it worked for me.