Remember that in the end this is a social media platform. That means the more active and engaged you are with the community the better your odds are at getting readers. This doesn’t only mean talking to them through the threads but by taking time to read yourself. Think of it like direct selling.
The more you insist-Read books, engage with community- the better chances you have finding what we call “The One” in the selling business or in this case. The one who will go “Hey this dude/girl is pretty cool let me check out their profile real quick… OOooooh I like the name of that book let me try it out. Ooooh I love this book.” Boom you have a dedicated reader.
Now in any numbers game you will always read more than people would read your book thats just how it always is at the beginning. But once you get a handful of followers and dedicated readers you will have them help you spread the word.
Don’t give up and push through it.
Edit: Never and I mean NEVER PM someone to read your book. I did it back in the old days of wattpad and it ruined my rep more than it helped. And no one likes to feel like they’re being sold something. Instead of trying to push your book on them try this selling tactic called finding a need. What do I mean by this?
Lets say you are in a thread with a bunch of people and all of a sudden one of your friends says “Im looking for such such to read” That is what we call a need. Since your friend has opened him/herself up to a type of book she wants to read you can go ahead and match her needs by telling her about your book. IF it matches her needs. You don’t want to tell her about a fantasy book if shes looking for romance etc etc.