Dang, sorry to see the RIP dude. Starting out in hell on solo /p8, yeah it always feels like those undead in A1 hit like a train!
I find gearing up solidly in NM helps minimise risk, but as with my nova/Hydra sorc, Hell can still pack a hefty wallop and knock you on your ass in the blink of an eye.
Anyways, good luck with your next toon, if you decide to remake!