There's a ton of options to choose from, depending on what route you want to take with your Mustang. It sounds like the clutch you're looking at from Autozone is just an OE replacement, correct? If so, this clutch won't hold up to anymore power than before. I don't suggest this, as you mentioned your aggressive driving style.
There's no need to go over kill either! We carry a few clutches that are designed to be stronger than stock, but not
stiff as a rock. The Exedy 350
will suit your perfectly! It's rated for 430ft-lbs of torque and has excellent street manners. This also gives you room to add more mods down the road and still handle the power!
Hope any of this info helps you out. If there's any other questions I can answer, let me know!