Here’s an interesting way to learn about the character’s we create for our stories.
Virtually all books on character creation contain a list of questions, a “dossier” to fill out which starts with how a character looks, where he was born, and so on through his family circumstances, education, likes and dislikes, etc.
I have not found such forms helpful. It may just be a personal quirk, but I’m never excited about filling out answers to questions. Learn more.