This is not a question of how to draw people side-on. For that, I’d go to an art forum.
I already have my person from a front view. What I can’t do is visualize how that same person would look if they turned sideways. If I could see a picture, I could just trace over it. But I don’t I need to figure out how it would look in my head.
Every time I try it looks like a completely different person.
Any ideas?