It was the first follower that transformed the lone nut into a leader.

Most people don't know what they're talking about. They move their mouth and say things because they don't want to admit they don't know. Or they think they know, but it's just confabulation and biases. So ignore them unless what they say resonates with some real wisdom inside of you. Assume they're a fool and find out the truth for yourself.

If it's not a hit, switch.

You can't please everyone, so proudly exclude people.

Are you helping people? Are they happy? Are you happy? Are you profitable? Isn't that enough?

If you want to be useful, you can always start now. It will be a humble prototype of your grand vision, but you’ll be in the game. Start by teaching someone this week. Starting small puts 100% of your energy into solving real problems for real people.

If you keep thinking about putting on a conference or being a Hollywood screenwriter, and you find the idea terrifies but intrigues you, it's probably a worthy endeavor for you. You grow (and thrive!) by doing what excites you and what scares you everyday, not by trying to find your passion.