Then post a thread in the Intro Forum with a bit more info about yourself and your situation. That way you get better advice and the GC to offset your next purchase.
Then grind these two threads into your soul:
All the basics of using pheros effectively and working out your dose is in there.
All except TUTH are fully usable in School. TUTH is better kept for more raunchy times - Parties, clubs etc and at your age you will need to moderate it with something like IO to avoid the giving-off the stroppy/aggressive/walking hardon vibe.