Hi there! There are loads of people from all over the world here, I’m really amazed most of the time where packages are sent (and how fast too).
Like Xiphoid said, you should give us a little more about your personality and goal for pheromones: for example, are you interested only in using them for seduction or more generally to improve different areas of your life 
For someone starting out like you, I’d recommend looking at what other members have said about products with names like “Instant…” (Instant Honesty, Instant Openness…) which are recommended for people starting out!
In the Androtics store, there are “to go” bottles, which are small spray bottles. They’re relatively economical, so once you qualify for your gift certificate, you can get a couple of them to try the products and see which ones are better adapted to you. Also, they’re really practical for carrying with you.
This thread is really useful to get an idea on the effects. It’s a great read. In general, sticky threads (threads that are the top) of the forums are important to read and contain loads of good advice from the more experienced people.
And welcome here, I bet you’re going to have a lot of fun testing new things
Edit: Whoops, just saw that I asked the same questions as Xiphoid and that I had forgotten to talk about to gos, so edited.