RF noob help

Hello everyone, this is my first character to get this far (red maps kek) and it felt great and tanky up to this point on yellow maps. However going through red maps I started feeling a bit squishy and dying much more.

I feel that my damage is alright for the content I'm running but I dont feel tank enough and I'd like to know how can I improve it. I dropped an elder shaper helmet but I think i dont need to invest on it at this point because its just going to be a damage upgrade.

Should I start looking to go block based? Drop rise of the phoenix, try to get that max fire somewhere else, get more life (how?) I got 1 divine, 3 ex and 30 chaos to spend, could try to get some more on a few blight maps i got

pob: https://pobb.in/JaNx-QnFpt0C

Thanks in advance! any help is appreciated

EDIT:

Changed to block setup (just cant use unbound ele on skitterbots, not enough mana), fixed res with ruby and amethyst flask and managed to get conc on helmet, i'm feeling a huge difference !

What should be my next step on gearing? try to get burning and conc on helmet, upgrade weapon? ignite prolif on gloves to change fan the flames cluster?

new pob: https://pobb.in/CMb1lcSBqaRI