PoE yax51 builds

Hello all, I decided to go with RF Inquisitor this time, and so far have been having a blast with it. I even managed to beat Eater of Worlds once. Even so it feels it a bit squishy. I am looking to see if there are any little tweaks I can make to not be so squishy. Any advice you can offer would be great! POB: Edit: I can't seem to progress past level 91. Some of those maps just wreck me, and I lose all gained exp.