Glad I could help!
The screenshot was a great idea, you're on the right track if you get to that screen! Just make sure to scroll all the way to the bottom of that page and hit "save"!
It's also worth noting that if you go into "go advanced" below the quick reply box, or hit "post reply" at the bottom of the previous post, or if you're posting a new thread, you can change your subscription for that individual thread by scrolling down to the post settings (below the box you type in). So if it's a topic you're really interested in, or you have an emergency and need advice, you can always be updated about who's saying what