Even if someone has schizophrenia, they still have individual strengths/weaknesses/proclivities. I like this book to try to figure out what it is you want to do. Notice that it has almost a 90% 4/5 star rating. It has lots of exercises to help you figure out what you want to do: https://www.amazon.com/Designing-Your-Life-Well-Lived-Joyful/dp/1101875321