Definitely start writing and never be scared! I felt the same way as what u are feeling right now. I was so scared but took the challenge. Trust me always write what u love, this is important. As to normal romance or forbidden, I think it depends on what u can write better on, which one do u think urself thinking about more, choose on that. Choose the one u can imagine more about. I hope that helps also if u need anything feel free to talk to me either here or in tik tok dm that is totally fine with me. I’m happy to help u more