PoE Vampirism, Cold, Duration builds

I'm following TriPolarBear Cold Dot Elementalist build, i'm clearing quite fast (i guess) even t16 maps. Problem is that sometimes i just got oneshotted and i don't know why, even in T12/14, so i keep losing xp and it's been more than a week now and i'm still at 93. Am i missing something crucial? Thanks for help!

I'm liking the playstyle but I'm having a hard time planning on upgrades beyond better weapons/amulet. I also thought about switching to ignite vortex, using proliferation in the glove. The main thing is: What tips to improve my damage (I wanted to have something around 6\~7 million in guardians), and mainly, the movespeed (is it possible something around 120\~130%?). My current POB:

Edit; CONFIRMED NOT TO WORK AS BUILT. For some reason, Petrified Blood and Progenesis stack multiplicatively rather than additively, and so this build is just too squishy as currently built (dying to the CWDT loop likely). I think natural language of the items disagrees with how that works, but no sense arguing with their programming. Hey everyone, I wanted to post this as a way to get some feedback around the new flask Progenesis as a way to replace the Ward mechanic in a Wardloop build. POB: As a summary, instead of using Olroth’s Resolve to grant enough