My question involves criminal law for the state of: Texas
I was working at a Valero Corner Store in Williamson County. 4th of July weekend, left alone in the store, my line had 10 people in it and the delivery truck driver came in. During all of this, TABC sent a minor in to buy alcohol. I swore the I.D. read 1984, and the girl LOOKED 26, so I didn't think twice and sold her a beer. I'm 49 and have NEVER been in trouble with the law, so am terrified and am kicking myself over and over. I was terminated immediately, which also set a precedent for me. I am totally depressed and scared, so am posting here in hopes that someone can tell me what to expect from my first offense ever. I cannot afford a fine OR lawyer, as my husband and I were both laid off our jobs in CA in 2008 and are still trying to recover from THAT.
What do I plead? I AM guilty, but would never intentionally or knowingly sell alcohol to a minor, especially being the parent of 19 and 16 year old boys!
Thanks in advance for any advice and/or comfort provided!!

