Chasing the wind...

What do you do when you realize that you've accomplished goals and followed a path that did not come into fruition as you had imagined?  I've been out of college for five years now and am not where I thought I would be at this point in my life. I worked hard in college and got a job right after school, but somewhere fell off the path of what I wanted to do with my life.  I think I was so excited to work with the government and get a job straight out of school, that I didn't care if it wasn't exactly what I wanted to do.  I stayed there for almost three years before I decided to leave.  Then I thought a job in environmental consulting was what I wanted.  I've been doing that job for about two years now, and haven't been happy most of that time. At this point I feel less confident in my abilities than I did five years ago and I'm not sure what to do next.  I've dabbled with the idea of going back to school, or doing something totally different such as getting into the wine industry, or chinese medicine. I am completely lost, living back at home with my parents and brother, and really don't know what my next step should be or what I want it to be.  I'd love to have a job that I look forward to going to everyday, but I really don't know what that job would look like. I feel like I failed in my path and need to start over, but don't know where to turn...