Realize that the risk of failure does not equal the risk of catastrophe. If your side project fails, in all likelihood you will still have your health, wealth,

Realize that the risk of failure does not equal the risk of catastrophe. If your side project fails, in all likelihood you will still have your health, wealth, and sanity. "Catastrophizing" is a psychological term for the irrational belief that any wrong move will be the end of you. Be rational: A side project is not guaranteed to succeed, but if it fails all that happens is you have gained valuable experience and are better equipped for your next venture.