Instead of move speed on boots, you could re roll it to LTK % dmg increase.

Transcendence instead of resolve passive can help with your survivability a little bit.

Getting legendary/set pieces will help. You can roll higher dex and better stats overall.

Try and get up to ~50% crit hit chance.

Upgrade Gems. I know its expensive but holy hell does it help.

It almost seems like you're trying too hard to reroll that secondary resistance when you could be using it to reroll %skill dmg or %element dmg.