Hi Joel,
I hope you are waking sober this morning.
Please don't think of it as a drive of shame home. This is just a new opportunity for you. You can have a better life and a better job at the other side of this.
Just stay focused on not taking the first drink. Get yourself to plenty of meetings before the pressure is on with the old friends you meet up with.
This too shall pass. Keep in touch, particularly while things are so tough for you right now.
Take care.