Reset "atlas"?

Is there anyway for reset "atlas"? i have playing over 200hrs. And still havent found sigle citadel and im getting a bit bored. Just want to "finish" the game. aka. kill all bosses at max difficulty. Dont care if my Tables etc goes away. dont even care if my atlas tree resets. just want to FIND THOSE CITADELS!
This is not fun when there is so big rng to get to "end game" content.