<human>: We have been together for 4 years, she thinks she can write awesome stories because her family keeps saying that she's can write perfectly and that her stories are interesting. 

I've read [24] some of her stories and noticed that she has a very small vocabulary and keeps using the same basic expressions and words. Her stories are also pretty mediocre and mostly pseudo-erotic romance fantasy with demons and vampires. 

I'm totally cool with her writing stuff on her free time, but she has this idea that she will become famous and rich if she concentrates on writing books and gives up her job.

I've tried reasoning with her that most book writers have an extremely hard time making money and they write books mostly as a hobby. She doesn't believe in me and wants to pursue this dream, which I think will destroy her career and our life together.

How do I reason with her and tell her that her books and writing sucks without hurting her?

Can you give me the gist of the text in a nutshell?
<bot>: Girlfriend [24] of 4 years wants to give up everything to write her crappy stories and release a book. I'm [24] not happy about it.