I can become very emotional about math, although I'm not that good at it.
I actually feel that the different kinds of stories come out of different parts of my brain.
Other people, including me, have written books with main characters who were old and rich. Or old and brilliant. Old sages, old wizards, old rich people.
One thing nobody can do better than you is be you.
One of my degrees was a science degree in biology.
It is not wrong to be different. Sometimes it is hard, but it is not wrong.