Could someone kindly tell me how to make it so I see posts from a wider variety of users?

This may or may not work for you. It took about 3 days to start working for me. Customize feed sliders.

i have never seen you before.🧐

No wonder no one sees my posts. I get 1 view every hour. It’s annoying

I just thought everyone blocked me if honest

You must sell your soul to the devil

You could play around with your feed settings, but in my experience they don't do much.
Your best bet is to join as many groups as you can and accept the fact that many posts will remain hidden for you no matter what your do