Need help improving my Cold Spellbreaker

Char is currently at level 83 going through Elite.
The character has ok damage and a few resist reducing abilities but has struggles with survivability. I don’t know which skills to focus more and I don’t know which devotions to take next. I think some of the components I have needs to be changed along with the other augments. I also need to replace my relic with something better.

This is my build so far:
https://www.grimtools.com/calc/lV7YvzJN

I use Shadow Strike to get to the enemies. Then I use ABB to proc Lethal Assault and Elemental Storm followed by RoS to proc Rumor. If I take large amounts of damage I use Pneumatic Burst and MoE and Blade Barrier is there as a way to prevent more damage from hitting me. I use OFF as cc and Nullification is used mostly against bosses with buffs.

put scaled hide component in shoulders and legs for armor absorption, take points out of eskandras ele exchance put into 32 pnuematic burst