@coltonbrobeats congrats on selling your first beat! I wouldn't worry too much about your prices, the average for a non-exclusive is around $20 - your non-exc price is close to that, and people will pay that if they want the beat.
It may be that you're not attracting enough people to your page, or not converting them from visitors to customers. It can take months for someone to become a paying customer, so you need to be getting their email addresses, getting them to follow you on social media, etc. so you can continually market to them and get them to come back and buy from you
We have a series of blog posts dedicated to marketing that I recommend you have a read through for some tips. The first in the series is here: http://bit.ly/1LYGtFE
I also recommend checking out the Pro Producer Series, as you can get advice directly from top selling producers on myFlashStore. You can watch the series here: http://bit.ly/2fSU7Ro