First of all let me start out by saying "NOBODY HAS A HEAVEN OR A HELL TO PUT YOU IN". Though I've never been in this type situation, I'm sure that if you will be COMPLETELY honest with them that they will be understanding about it. The only advice that I will give you is to pray about it & have faith that it will work out. But you also should stop beating yourself up about it as well. It happened, you changed your life & now it's time to move on. We ALL have vices that we're dealing with, and shouldnt be judging because NOBODY IS PERFECT. I hope that this gives you some encouragement to keep pushing on & CLAIM THAT JOB. Good Luck & please keep me posted on how things went.