Midas Is opened after completing A4 normal, I think the quest is then in the Hinterlands? Either there or idyllshire, keep looking!! I would ignore a1-4s for now, that's more of something to do when you have loads and loads of time! I'd recommend unlocking and grinding out midas for 220 gear whilst capping lore and getting that gear also. That will bring you back up to speed for the current harder content like savage midas. You can also try out sephirot extreme (quest I can't remember, maybe that weird guy in waking sands called like ukokukknniufnenf) XD

Good Luck!!