Cheryl, you can get through anything by not drinking. THe most important thing for you to do now is keep yourself together and stay clean. You will find another job, but if you drink tonight that cerainly wont happen soon. Look at it this way, you have only 15 mins, then you can thank God for getting you through today.
Drink some water, take some vitamins if you do that, and get a good night rest. Thats what you need to face the day tomorrow.
Be good and check in first thing in the am, ok?