You are totally heading in the right direction! Here is a super brief overview of RSS feeds in WordPress: https://wordpress.org/support/article/wordpress-feeds/#finding-your-feed-url. It mentions combining a custom permalink that you can create with your feed’s URL. I never thought to do that, myself, but it is a great suggestion, I think, to make a simple and obvious custom URL to share.
Tracking feed subscribers is something I’ve not done myself. I searched around a bit and my sense is this will require setting up some form of web analytics (e.g., google analytics) and/or installing a WordPress plugin built for this purpose. I saw Jetpack mentioned often, so you might start researching there.
There are rudimentary web analytics built into cPanel/DoOO. You can poke around with the stuff within the ‘Metrics’ box of your cPanel to see what’s offered there.
One of the things I like best about WordPress is the way syndication is built-in. Most of my experience with it involves building ‘course hubs’ to aggregate student work into a single site. But I’m curious about using RSS as you intend to. Please follow up with what you learn!