I felt that way too when I hit “refresh” and everything changed! Basically “my friends” is your feed

“All posts” is all posts

Hot is gone

Promoted is gone

Notifications are here

You can subscribe to different “Communities” that have your interest. ( :):):) )

It took me a few hours to become comfortable but i am getting used to it and its easier i believe.

If there are any specific questions you have I can try to help with let me know, being a complete expert in this non gold related topic i just found out about a few hours ago :)