Divinity II is much deeper and have many quests HIDDEN, do not be caught of this !

Talk to NPC's and Mindreading also help to discover new area and new quests!
I go the first time to the platform (where you meet Talana!) when I was level 8 or 9 !
Look often to your map and read your logbook to find clues about quests ...
Success !

Edit: have you done, par example, the quest for Dana? Or the quest for the Upton Miller? Or the quest for Quincy, Sir Richard, the merchant you find in the Black Boar Inn, etc .... Or find "hints" that NPC's or books gives you !?
So, this game is more that only following a mean quest

... you can dicover so many other things

!
And the cost(XP) of Mindreading is full worth it, I find!