Everyone looks up to someone.  Who do you look up to?  I was watching the Canadian Ironman Triathlon a number of years ago.  I have the greatest respect for those athletes (including a friend of mine who was in the race).  I have done triathlons before but of a much shorter duration so these high endurance athletes have my greatest respect.  So, there are a couple of things to think about here.  First, who do you look up to?  Who do you respect greatly?  And, second, and more difficult, who looks up to you?  Who out there needs you and your expertise?  Have you ever thought about that?  You might be surprised at what you discover when you spend some time reflecting on this.