I'm not sure who Trevor Holt specifically is in this story without more context. It could be a fictional character created for a particular book, movie, or other form of media.
Well, it depends on how you define 'good'. Trevor Story has shown flashes of brilliance, but his consistency can be a bit up and down. However, when he's on his game, he can be a real force to be reckoned with.
Revise and improve your writing. Maybe the story needs some more twists and turns, or the characters need to be more relatable. You can also ask for feedback from a few friends who are into the same fandom. This can give you some ideas on how to make it better.
As far as public knowledge goes, no. Trevor Noah has been occupied with things like touring for his stand - up comedy, his work in television and digital media. He may be interested in writing a novel in the future, but there are no signs of it at the moment. He might be more focused on his current platforms where he can reach a large audience and express his views on various topics, from politics to social issues.