Project sounds great in Audition, but all exports sound truly horrific! Please HELP!!!!!!

Firstly you should find out why everything's in the red - and reduce the record level so that your original wav file isn't distorted. Because that, you cannot undo - you need the peaks below 0dB to start with. And make sure you store your file in the 32-bit Floading Point format, because this uses some nifty processing which makes them pretty much immune to overload errors. Obviously they can't take care of distortion in the original digitising, but they can be rescaled either up or down after this, without loss.

Your next step should be to us Normalize, and set it to -1dB. This will optimise the file size to use all of the dynamic range available. Then you do the rest of your effects. But note - if you put boosts in the chances are that you will overload your final file. How do you fix this? Normalize again, and the Floating Point file will be back within the gamut again. Then you export the file.

One other thing to note is that ideally, don't use the Graphic Equaliser, but learn to use the Parametric EQ instead. This doesn't introduce the phase errors that any Graphic EQ will, so everything sounds more like it did originally - only with your boosts and cuts. Generally it's a higher-class EQ, and once you get used to what it can do, you won't find it wanting. I don't think I've ever used Audition's Graphic EQ for anything.