Just keep it clean. Avoid writing about inappropriate sexual content or objectifying characters in a sexual way. Focus on the story, the characters' personalities, and their relationships in a non - sexual context.
Well, first check the settings of the app or website where you're getting the suggestions. Look for something like 'Notifications' or 'Suggestions' and turn them off. Also, make sure you haven't enabled any automatic preferences that might be causing the suggestions to show up.
You might be able to do that by adjusting the settings within the app or website. Look for options related to story notifications or disabling them altogether.
To stop sharing stories, you might try changing your mindset and focusing on keeping the stories to yourself. Another option is to find other things to talk about instead of those stories.
Find a new hobby that takes up your time. Maybe painting, knitting or learning a new language. When you have other things to occupy your time and mind, you won't be as focused on romance novels.
You could try finding other hobbies or activities that interest you, like sports or reading different types of books. That might help take your mind off the fanfiction.
Try to focus on real-life relationships and activities. Meeting new people and getting involved in hobbies can shift your attention away from fictional characters.