I'm sorry to hear that job didn't work out for you Meagan.
About desk jobs...another desk jockey here.
Here's some bits of advice for you if you want to be able to have the glamorous job of Administrative Assistant.
1. Learn the major programs. Word, Excel, Powerpoint, Access. The last 2 aren't necessarily as crucial, but knowing these really opens up doors. The first two are essential to have more than a basic knowledge. You need to know stuff like Mail Merge, Sorting, Formulas, etc. And the best part is that there are plenty of online tutorials for all of these programs for free if you are willing to do a little looking.
2. Get some experience. These positions have that catch-22 - you have to have experience, but you can't get a job to get the experience. There's a few ways you can go about this. One is through temp agencies. You'll have to do some crap jobs, but at least you will also be able to find what you like and what you don't. You can also volunteer your time with rescue groups and shelters. They are usually happy to have someone come in and help with the clerical work. Volunteer work is also really good for getting those professional references you'll need.
3. The more you know about computers, the better off you will be. If you apply to a call center, for instance, with proprietory software and you can tell them how fast you learn new programs with a list of what you do know it will look better. For instance again, because I already knew Photoshop I was able to market that, and now I'm not just the Receptionist that I was originally hired for, I'm the Marketing Coordinator. But as a small company, they only hire one person to fill a variety of roles so the additional knowledge came in handy.