Congratz!

Yeah doing your first few heroics is a pain but once you get it down its cake! Or pie if you dont like cake
Nexus is a pain, just so out of the way, like you saw in one of the other threads its a good way to do heroics and run and collect them badges. Its got a good route going.

I do UK, UP(Skip gauntlet sometimes), DTK (Skip Novos his a pain, I am sure I can do him but dont need anything of him other than the badge), Gundrak, Time CoT.

I skip Nexus (but after reading that post earlier I might do the 2 badges), Oculus (I have a deep seated hatred for the place), Kingdom (only go there if I need to skin those guys,but its easy I can do most of the bosses), AN (again only if I need to skin, but its easy its a 20min instance at most, last boss is a pain in the behind), as well as VH (not really a fan of the place, again I only go there if I need to skin stuff)