Quote Originally Posted by RegentP View Post
You're in the driver seat, Tell them to "shut up and listen, this is how I do it."
>_>

Please don't follow this advice. Always be polite. Don't rage. Explain things politely and if people don't want to follow orders, do the best you can anyway. You do want to complete the dungeon after all and just because one person is being a jerk doesn't mean you should leave two people in the lurch. If the whole party is giving you flack you can threaten to leave and if that doesn't work, actually leave.

Make sure to rotate through targets. Healers generate universal enmity amongst mobs so even if your DPS are focused a baddie might pull away and go for the healer. I agree with the advice to start at the bottom and work up. You'll get a hang for combos and the general flow of battle, as well as which classes will give you the most problems maintaining aggro (hello BLM, BRD and WHM).