I leveled a new character from scratch, but i had a bunch of leveling uniques I used so I don’t know if it changed our experience.
I did a Warpath Sentinel but it was really scuffed, I survived on potion spamming most of the time. That said while much harder than my first bleed Warpath character I didn’t know whether to attribute it to not having a shield, not having Ring of Shields or not having leech in the gear/passives. Or the enemies just being much harder.
But I confess I didn’t have as much trouble as you seemed to have. My deaths happened on the last boss where my movement speed was too slow to get out of cones and AoEs fast enough.
It got to a point I redid the last area twice to get enough XP for level 58 so that I could equip the two hander sword Vulcanos that made a big difference with the leech.