PoE vinterdvala91 builds

Hi! I'm a first-time player in PoE, and joined this league. Found out about RF and thought I'd have a go, and really enjoying it so far, but having a bit of trouble deciding what to go for next in building my Righteous Fire Inquisitor. Following Pohxs guide, and at level 91 currently. I have about 5 divines and 300 chaos. What should be my next step? Better gems or gear? Can currently clear most maps, including most 16, but struggling a bit on vaaled red high-tier maps - avoiding those that have no regen, less max resistance, or lower regen. Thankful for any tips. [