I am truly sorry that you had a bad experience, sadly my best advice is to find a way to brush it off. I have posted about the need for the decent group mates to stand up against bullies and I still completely support my view. If we all work together to squash the negativity and rudeness, our game will improve vastly! But in the meantime, do not start to doubt yourself and your abilities due to rude people. This forum has some wonderful tanking and/or all jobs threads....giving advice or guides to help you get more confidence in the day to day skill usage, fight positions and gear suggestions.As someone that recently leveled both tank jobs to 50, I feel for your pain completely...there were days that I just couldn't find the desire to click that duty roulette button to roll the dice on a nice group, or a bunch of meanies. (this is even after leveling all other jobs already). Stick with it, ignore the haters and lighten the mood of your groups, you may have dps or healers that are as bruised and broken as you feel, but above all do not take it personally when some person decides to be a jerk.

Kudos to Raeanya for offering her aid in this matter...take her up on it, friendly and supportive people certainly make dungeons much more fun!