I'm a consultant in my 30s and I worry about my 50's and 60's. I feel like, if I don't get a recurring revenue product going that sells itself without the trade of time for money, I'll be totally screwed. I've tried and failed a few times on various projects, and it feels like time is running out. There are definitely fewer attempts left in me and it takes a hell of a lot of energy to stay positive and try all over.