How to stay alive and out of the fire

I am woefully inadequate
I am have been playing the game for many years and am unable to stay alive and out of the fire
I am unable to complete dungeons and dragon riding events
I love the game and graphics and am competent at professions
I find myself constantly making new alts in my attempt to stay alive
A new unkillable character - one that gets quests that are geared to someone without the ability to stay alive would be appreciated
Suggestions are appreciated

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