SSF Help with Build - Caustic Arrow Pathfinder + Herald of Agony

Hi All,

First time playing SSF, made a CA Pathfinder, I dish out a fair bit of DOT DPS but tend to die often.

Please find the Poe planner link and POB link Below.

Poe planner


POB link


Please tell me how to make the character more durable for use, I want to do maps with this build.

https://pastebin.com/gG9iUY2p

my pob
when u lvl just keep taking scion hp nodes, i made to 93 hc ssf-
i died to somethign stupid ;)