Hi Pris,
Tanya's advice is wonderful. Having only 22 cards when there are 396,036 cards at GCU (at this moment in time), means your chances of being found are very low. So keep creating!
What I do was recommended by Corrie Kuipers, a BIG seller on GCU and that was to 'find your niches' and promote them through Squidoo Lens, Blogs and specialty sites. I've listed her GCU101 Squidoo lens below and from there you will find links to many of her other lens which speak to what you are asking.
Corrie's 'attack' method of self-promotion has worked wonders for me. I have many sites (and yes, I spend a full week a month updating those sites) that are bringing customers to my door everyday. My growth here at GCU and at Zazzle in the past 18-months has lead me to believe I might actually be able to make a real living do this.
Take a thorough look at Corrie's lens through the link below and then continue the chat if you have more specific questions. There are many success stories here at GCU and most of us are all willing to share what we've learned.
http://www.squidoo.com/GCU101