I made the change at 30 and wanted to be settled in with my "final" job by the time I was 40 and have pretty much been on track. I'm not a math or science guy and was never very studious, but, through hard work and pure determination and a little financial help I got it done and I'm loving it. A good friend just made the plunge and he's 40. He's a bit nervous, but he'll get it done. Remember, you only live once.
papa t