cold feet

In the past I have always gotten cold feet and never followed through with applying for any teaching jobs.  Even though I have wanted to do it for so long I always thought of a reason not to.  Now I am finally doing it and I feel too far along to stop now.  What would I do if I decided not to go?  I'd still be bored with my life, and I'll still be thinking about teaching in Asia and wondering what it would be like. I hate regrets, that's why I have to follow through.