Come to grips with your situation.  Do yourself a favor and face reality.  If you can be easily replaced (by this I mean that someone off the street can do your job with six months training or less) then you are providing limited value to your organization. 

Assess your risk tolerance.  How much risk are you willing to take?  Can you stomach starting your own business? Are you willing to take the risk of looking for another job while still working at your present one?

Guage your passion.  Ask yourself if there’s an opportunity to work in a role that allows you to do something that makes you feel good about yourself. 

Understand your ability to provide value.  Learn what you can do that not only fuels your passion but that others find valuable.  The point at which these two forces come together is your ideal job.  The more value you provide, the better the opportunity for compensation. 

Match the value and passion with the risk tolerance and determine if entreprenurship is right for you.  If you have a substantial tolerance for risk and can create value in a business that you feel passionate about, then you have the recipe for potential success as an entrepreneur.