That's fine, just have a good attitude and try.
If someone says get out of the fire do so. If you have a low frame rate adjust your graphics settings. If you have lag make sure there isn't anything slowing down your internet connection. If you have trouble playing your class, don't bother with rolling a new one, check out a website with helpful info icy-veins.com and noxxic.com are good ones that are easy to follow.
If after all that you still do less than 20k dps, that's fine I will still enjoy playing. If you get in a group with me just remind the tank that the mage can do crowd control and the dungeon will go just as fast as if you were doing 60k dps.
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