Melee Aberoth Tips?

I’m playing FG Shield Bash at the moment. I’ve just lost my last key for Aberoth. I was hoping to get some advice from people who have beaten him before running a melee Sentinel. Like are there any annoying attacks that could be rebuked? Any movement techs? Build shakeups? Etc?

I have managed to make it to P4 a few times, but I just end up dying to some random AoE DoT damage in the chaos of it all. I’m running leech as my sustain, so anytime I have to run from the boss I risk dying to lack of healing from any AoE stuff on the ground.

Here is the character as is: https://www.lastepochtools.com/planner/B4PE219B

Gear isn’t super ideal yet, but idk how much that’s really going to make the difference at this point. But I’m open to suggestions on gear to target if you think it could be a significant bottleneck.