as a professionally published author who's written fic since I was like, 10, here's my advice for people who want to start writing fic:
fanfic is for fun. the standard is that you have fun writing it. there is no other requirement
starting is the hard part. write some bs at the top (I'm partial to something like "I'm gonna write this fic now instead of just daydreaming, i guess it starts with..."), use voice typing, anything to make the first few words easier
talk to yourself while you write. it makes your dialogue more natural and helps you figure out where to put commas (they go where you pause, most of the time)
edit it once or twice max. it's fic, don't stress it. read it aloud as you do, you'll catch more errors that way
one last scan before you click post. websites will change the font and that helps you spot typos
engage with other writers! here and on the platform you post to! fandom is about community and interaction, you have to be active if you want to see activity. idk about others, but when someone comments on my work I always check to see if they've written for that fandom, and check it out if they have!
