Please help me improve my RF juggernaut

https://pastebin.com/JEFcZS0B

I am happy with the tankiness (although I still die every once in a while, even with 89/87/87 res....this game....lol)

Anyway, the damage feels....lacking....please tell me how i can improve this build.

This is my first ever strong, solid build and any advice appreciated. Thanks in advance

No exposure?

You might want to put fire trap in your body and RF in your helm, and switch up some of the supports. You can check my profile for how I have mine configured. I'm also running two curses which helps on single targets.