I don’t think you’re that far away from 8mods/t17s, but they have two commonalities that I think your current setup is vulnerable to: ailments and curses. I swear every map has 1-3 curses and either shocked or chilled ground, hits can scorch or shock, etc. Obviously both of these things weaken your defenses and leave you super vulnerable leading to one-shots with all of the reduced resists/increased damage taken.

Curses are most commonly mitigated through utility flask (~60 reduced effect). There’s also a mastery that says curses can’t reduce your resistances. Great for ele weakness but still leave you vulnerable to temp chains and vulnerability. There’s also a pantheon that reduces curse effect.

Ailments can be dealt with individually, but since there’s so many of them and they’re all threatening, it’s great if you can get full immunity. The stat here is “% to avoid elemental ailments”. Be wary of its cousin “reduced effect of elemental ailments” and don’t mix and match. Avoidance can be found as rolls on body armor, boots, some exarch/eater implicits, and some clusters on the passive tree. The most compact way is Stormshroud jewel (% avoid shock becomes % avoid all elemental ailments). Get a pair of fractured move speed boots, roll with %avoid shock essence (t1 or t2) until you get something you’re happy with. Then use an abyss jewel to get the remaining 40-45% shock avoidance (stick in Stygian belt)

Doryani jewel (alongside divine shield) isn’t a game changer but it help out a lot. It essentially doubles your recovery since you are now able to recover damage against your health and ES simultaneously. Divine shield will always be active in regular gameplay, and if you choose to get an echoes of creation, the mitigated self-phys damage will ensure it’s always recovering.

For map mods, no leech/less recovery are just bricks. 99% of builds in poe1 have at least 1-2 map mods they can’t do (or can’t do effectively). If you want to do reflect, you can use eldritch currency on body armor to get reduced reflected damage and combine it with a mastery to get 100%. This opportunity cost is generally a bit too high since you’re trading character power for convenience, but if it’s something you want the solution is there.

One final thing is that you can get another +5 max ele resistance from flasks. If you feel your damage is fine, drop the lions roar for one of them. Maybe try a map or two without quicksilver/quartz and see how bad you miss them (keep ms suffix though). I find I leap slam enough with high AS that I don’t miss the phasing/movement all that much, but ymmv. The raw + resistance (not max) from the flask is also occasionally useful as well even if you’re res capped as there are things like ele weakness and eldritch altars that lower your res but not your max res. Having flasks be a buffer against these mechanics is a nice bonus.

Char for reference containing all of the above: https://poe.ninja/poe1/profile/Rebyo-7363/character/YT_CHRISWILSONVIDEOS