Ask How can you increase member retention of membership site?

[SuperAffiliateX]

I recently started a membership site, but I'm struggling to keep members for the long term. Some join for a while and then leave. I want to make the site more valuable so people stay subscribed. Should I offer more content, better support, or something else? I'm not sure what keeps members engaged and coming back.

What are the best ways to increase member retention on a membership site?