Emergency Commissions...

Well, I'm afraid I have to open my commissions to pay my bills, as I've just lost my job...

Upon arriving at work today my boss said she was surprised to see me. I asked why, and she said I wasn't scheduled for today, but on my calendar I was. I double checked, and sure enough my name was crossed out. Having already had 4 days off this week, a 5th day would be horrible. I asked if I could please work today, and she called me aside and said that she didn't want me working. When I asked her why, she basically said I'm the worst possible employee.
According to her, I'm greedy, selfish, and rude. I only care about myself, and I don't care at all for the business. I slack off, do the bare minimum, and half-ass everything I do. I constantly have to be told what to do, I'm rude to customers, and I ignore what I'm told to do. She's saying that I'm just a horrible selfish person, and that she only hired me in the beginning because she wanted me to post on Facebook about her business.
She jumped on me for bringing lunch to work, for buying my own scrubs (our uniform), and for clocking in 5 minutes early everyday. She says that "all" my coworkers dislike me, because I am not a team player, and that I'm lucky to have been around this long. She said after the first 3 weeks I worked for her, she expected me to give notice. 

I have never felt so insulted, degraded, and underappreciated as I do right now. 
But what she said got me thinking, am I a rude person...? Am I selfish and greedy? Do I only care about myself...? I can't think straight right now, so I'd like to ask you all. What do you think of me? Am I really like this? Or have I diluted myself into thinking I'm something else?

And since I'm jobless, and have no income, I'll need to open commissions to pay for my bills until I can get either another job, or file for unemployment.
If you choose to commission me, I cannot thank you enough.