Welcome Greentea, you are at the beginning of a great journey that we are all on together. We have all made horrible decisions that have devastated our lives in one way or another. I was never arrested, but I came close to being arrested with an amount of a particular substance that would have guaranteed my incarceration for many years. The experience was so harrowing that it caused me to step back and say "What exactly are you doing? What in the world do you have to gain? What do you have to lose?" These fundamental questions I have to ask myself from time to time.
I commend you on your decision to seek help in AA. I myself have been attending AA, and the stories of hope and the experience of others in recovery is awe inspiring to me. I love being able to see people go through the worst in life and come out so full of hope and desire to live. You will find the answers you are looking for and become a better person.
Best of luck,
Chris