CWS build help

Hey all, can some1 help me please? i dont understand why my build is soooo squshy, simulacrum 10+ wave so hard to stay alive, also hard to stay alive ultimatum 8+ 8(((
Here is pob
https://poe.ninja/poe1/pob/81a73

This is what im trying to copy... https://pobb.in/UMSg-RsUx2QO

Okay, few things:

You need 90% Fire Res. With flasks, you're only at 86%.

You don't need Enduring Composure... you have Endurance generation from your graft + Petrified Blood.

Annoint Defiled Forces node on your amulet and use those points to get Nomadic Teachings and the +1 max fire res.

Get yourself Foulborn The Red Dream with the Fire/ele res to max life at 75% and place it in the lower left jewel slot near the Marauder start tree. Then get the resistance nodes near it and you'll get a ton more life.

That's to start. Let me know if you need any other suggestions.