Despite having written five books, I worry that I have not written the right kinds of books, or that perhaps I have dedicated too much of my life to writing, and have therefore neglected other aspects of my being.
As obvious as it sounds, I strongly recommend shopping at a specialty bike store. They are the experts, and they will be able to help you decide which bike is best for you.
I take all of my life lessons, which some people might call 'mistakes,' and apply them to my future so that I keep growing.