Same for me, on several story lines, with several characters. I have had a few that I came back to a few levels later, and barely survived (6 levels above the quest level).
not to mention there is also the cost issue. If I have to spend 3x more silver in repairs then I get from the quest, for a quest that will reward me with an armor piece that is 2-3 levles below me, and I can’t sell (soulbound), coin-wise i am better off just not doing the quest.
And the frustration level is getting to the point that it is seriously impeding on my enjoyment of the game. So far, I have three toons that can’t advance in their storylines, since I hit a quest I can’t beat, even with help from guildmates.