Beat 'Normal' Difficulty — When Does the Fun Start?

After 21.6 hours, I have beaten Normal and have started playing on Elite. Nothing much seems to have changed. The game was quite boring the first time around, and I am not looking forward to playing through the same game again. I am playing a level 50 Occultist, with one single skill point in Demolitionist. When does the game get fun? I heard that this genre was about slaying great bosses and collecting rare pieces of gear, organising 'raids' with your friends and making fun 'builds'. I don't feel like I have done any of that, and it doesn't seem like Elite difficulty actually changes the game to make all of the above happen. What do people with 100+ hours in the game do to make it fun? For context, I have played some other ARPGs: Divine Divinity, which I liked; Record of Lodoss War, which I thought was okay; and Torchlight II, which I despise with all my heart for how mind-numbingly boring it is.