Please, please, please go get some Dub-mythlits right now. Your problem is going to be HP/Recovery, which the Dub-mythlits will help out with, even though they are Dark based. To get the Dub-mythlits though, you're going to need a zombie team, which can be done by having a low level blue ogre, 4 Sapphilit, and a Siren, or, any colored low level ogre, 4x any *lit, and an Amaterasu Ohkami.
Ancient Dragon Knight is good, but he's not a good starter and you do not have the team to make it work right now. You're best bet is to befriend as many Archangel Michael, Freyja, and Parvati friends as you can, after you've obtained some Dub-mythlits.
Honestly, you're not all that far along, so it's probably best to re-roll until you get a great god starter, get enough stamina to run the Friday dungeon several times, build up your Dub-mythlit army, and hope you get the support allies, of your color, on the next Color Festival.