Are you racing or riding recreationally? Lighter/stiffer wheels would be great... if you're racing. If you're not, then just use what you have - you'll get stronger.
The frame choice is good although now dated, with maybe a new AR model coming out next year (which is why I sold mine) I used my AR0 in crits and got decent results on it.
You're young, the best place to put your money is in a coach, a garmin (or similar) and then a power meter. No need for $400 dollar top end shoes, a new wheelset that'll save you 200gr or a pair of carbon bars (stick with alloy, ive cracked two carbon bars in crashes)
Too many people worry about the bike, and against what Lance said - it isn't about the bike, until you're at the top of your sport or racing against the clock etc. Your legs do the talking in races, I see too many people racing on Venges/S5's with aero wheels and they just sit in the pack, don't attack and don't contest the sprint - because they don't have the legs for it. Chippers.
Obviously at the end of the day you may be doing loads of training, so good on you
Pro Vibe 7s bars and stem are nice and stiff, mavic ksyriums will be more than good enough. Sorry if I ranted too much, its hot and I'm stuck in an office!
CAAD10 Force 22, Quarq, Ksyrium SLR
LOOK 695 Light, Force22, Zipp 303.