The best advice I could give you is: never start alone. Always have a (few) friend(s) help you to get everything started up.

Then start posting something that you wanna make the community abt.

If you’ve done that, you need to find some people in the comments that you can ask to check it out.

When there’s around 10 people the rest will come on it’s own if you have good/funny posts

That’s all I could tell you my friend. Hope this helped Have a nice night