Brayflox is a difficulty spike and very sensitive to your gear level. I looked at your character on Lodestone. You have several things that you'd be well advised to fix. First of all your gear is too light, you need better armor, ideally your gear should match or exceed the level of the dungeon from Brayflox on. However your biggest issuse is going to be holding aggro with a level 28 weapon. I'd suggest obtaining Grand Company gear at least, or talking to some friendly crafters about getting some HQ gear. Some of your accessories are quite low level as well, and it would ghelp to have them upgraded also. Your Free Company is a larger one, so talk to the crafters within it about getting some gear to help you. Honestly Brayflox is the first in sequence of difficulty spikes and your gear is the major way you can deal with those spikes - well, that and making sure you are on top of your skills of course.