Can't beat Eldritch Outlook, what am I doing wrong?

I am playing as a Warrior Battle Monk/Paladin hybrid and I had no issues with any content previously (I don't use Fallen becuase I don't like playing Dark Souls). I've been trying to beat this dungeon for a few hours over the last few days and not even once had I even made it past the grid room. I can't defeat the Reversion Catalysts since they have a lot of HP and they somehow outheal all the damage I deal to them every few seconds. Like, I can get the first miniboss down to 200k and in some way it immediately goes back to over 400k. The furthest I got was second to last miniboss room. I know I am probably the definition of skill issue here, but I can't seem to find out why I am having so much trouble with this and I can't even make it to the boss room. Can someone help me figure this out?
My current build (can't post links cuz under 10 posts):
> Morph-Stardust [t5t5t5]
> Libra [t5t5t5e5e5]
> Vaward [e5e5e5]
> Capricorn [e5e5e5]
> Photon
> Prism
> Remikas' Authority
> Royal Stormy Amulet
> Convergence [t6t6e6]

 

One quick tip i have is to take the left path in the grid room, the right path has crazy hp and regen, the mobs to the left are more glass cannon (im not good with builds so cant comment on that)

 

Do it with a party, wouldn't suggest trying to solo it till you've beaten it a few times

 

if you still want to go for it with the same build,
I can recommend using the necklace Contrast from the qira hive