You should simply go visit Twitch and see how the top players play. Overpower DPS and extreme gears are your sole means to survival on these crazy tier 10 maps.
Having said that even those players do not play tier 10 maps often. Tier 10 maps as GGG mentioned are more for bonus challenge rather than leveling. You should not evaluate whether your surviviability is sufficient just based on whether you get one SHOT or not.
If you really want to tank that badly, go for ES characters instead. They cost about 100 exalts to build and have 11K ES for you to survive through most situations as long as you play carefully.
I watch twitch from time to time and all I see are the same builds. SRS, PA, Cyclone/VGS or Incinerate. And those are not builds I am willing to play. It is >PATH< of exile. Not, enjoy the current op builds of gtfo.
Well that is the sad fact of this game right now. You can see that I have not logged into the game for weeks.
