If you click on My Profile, new responses to your posts do appear in one list. I use that and the menu item "New Posts" to browse.

Under Edit Profile, near the bottom, i exclude forums from appearing in my New Posts, like the Games forum - they can be prolific, and i dont participate.

Hope this helps you navigate this great place!

ETA - DEFAULT THREAD SUBSCRIPTION MODE - in the middle of the huge edit profile page. I use the 2nd option, to not get email. But it DOES auto-subscribe.

Dont forget to save at the bottom of the edit profile page!