Nothing that hasn't already been said.
I chose warrior as my first job, and I've stuck with it since 1.0 (it was max 33 in 1.0)
and my first really big dungeon where I felt like a bag of pooh was Brayfox!
I thought...well I had a good run, but obviously I'm no bueno at this.
But my friend(s) just told me not to take it personal...and believe it or not, that is all it took for me.
Now i'm just an average tank with average gear, that can hold hate against most Duty Roulette groups, the ones where I lose hate, I like those the most :)
I pull at the speed I think the group can handle, I'll pull many at first, and if it's too slow, I'll pull less, if I lose hate, I'll pull more lol.
If I die (which happens on occasion) I'll pull less because even though the DD's are there, the healer isn't.
I wouldn't say it's harder or easier than any other job, but I put pressure on myself to be good, so I made it harder on myself :)