G’day metro 
welcome to pherotalk, looks like you have a head start as you have a good grasp of human psychology.
well, the good thing about psychology classes is…plenty of chicks to test your pheromone 
i suggest you have a look at this link Basic Noob Phero Bootcamp
it should keep your brain busy for a while.
in the mean time i suggest you tells us a bit more about yourself, i.e. what’s your main goal of using pheromone?? attraction? relationship? social? or work?
the more specific the better we can make suggestions 
have a good time, if you have anymore questions feel free to ask 