Douglas Adams said this quote

“ He recalls a lot of family worry about what he was going to do, and while he still sent in the occasional sketch to radio shows, he acknowledges that his confidence was extremely low. Despite his subsequent success and wealth, this propensity for a lack of confidence has continued.“I have terrible periods of lack of confidence,” he explains. “I just don’t believe I can do it and no evidence to the contrary will sway me from that view. I briefly did therapy, but after a while I realised it is just like a farmer complaining about the weather. You can’t fix the weather—you just have to get on with it.”So has that approach helped him? “Not necessarily,” he shrugs. ”