Chances are good that if you’re reading this, you’ve had something you’ve wanted to do, but never got the chance. Maybe you wanted to grow up playing the violin or piano, or learning ballet or French at a young age. Or if you wanted to go to a certain university, live somewhere, travel for a while.
Take that, whatever you never got to experience, and put it into a character. Purposely live vicariously through another.
To some it may not be such a great thing, you’re deliberately putting in pieces of you into your character when you should be making them their own entity, giving them dimension and depth and dynamic on their own. Typically, these things are side ornaments, in a way. They are apart from what makes the character who they are, but they still have an impact.
Whatever extent you want to take it, go for it. Consider it, but you may not even have to.
-The Novice Wordsmith