Welcome to Pherotalk Ventus 
Yes, your choice of Ammo is a good one for starters - you should read the introduction and threads linked in this thread from 1Alpha’s sig. It contains all the info you need to understand and get started with phero use.
His advice of Ammo and socials like Instant Shine, Instant Openness etc is a good solid introduction.
Good you have your head screwed-on about expectations - Yes, pheros are a great help but IME you still need to do the work and get congruency (appropriate behaviours) sorted as well. I started with behaviours first and then came to pheros, it was like the icing on the cake.
If you also have a look at this thread and give us some more info about yourself and how you want to use pheros, we may be able to offer better advice and you will earn your GC, which will help you get started:
https://pheromonetalk.com/t/how-do-i-qualify-for-a-25-gift-certificate/19934