Welcome to Pherotalk Ally!,
Well you have taken a big step towards working on your confidence by buying A314. 
Make sure to PM Steve when you receive it so that you can join the A314 insider’s club (the private section of the forum for people who have purchased A314).
Since you already have used pheromones (and had some great results) I’m sure you know how to find your sweet spot already but just in case here is a guide by Steve (knowing your sweet spot for each product really helps to get your best results):
How to find your sweet spot... (How to find your sweet spot...)
Since you mentioned “nice guy” and “beta male” you may also want to check out:
Instant Jerk: this really gets attention from girls. (A lot of members also experience a surge of confidence while wearing this-myself included) I got the “nice guy” comment once and I started wearing Instant Jerk and I had girls doing things for me/letting me get away with a lot and sitting next to me in hopes that I would talk to them.
You can read about my experiences with Instant Jerk and A314 in my journal titled “my notes”
Hope to hear about your pheromone adventures soon
ClintX2