A little arrogance (or even a lot) isn't such a bad thing, although your mother undoubtedly told you different. Mine did. "Pride goeth before a fall, Stephen", she said... and then I found out - right around the age that is 19 x 2 - that eventually you fall down, anyway.
Stephen KingBy the time I was fourteen the nail in my wall would no longer support the weight of the rejection slips impaled upon it. I replaced the nail with a spike and went on writing.
Stephen KingI'm seen as somebody who writes for adults because I'm an older man myself. Some of them find me, and a lot of them don't.
Stephen King