I'm sorry to hear what gambling has caused in your life. I hope things get brighter for you. It must be a relief not to be carrying the fear and stress that that secret must have wracked you with. There's freedom and strength in letting go of the illusion you're managing something beyond your control.
Good for you to be in a program. Although it may all seem bleak, the reality is that you've actually just stopped the horror, and once the consequences play out, you're going to be in a far better place than you've been.
Be strong and take credit for saying 'Enough is enough'. That's a mighty big step and you have the right to be proud of yourself for facing your fear and taking back your life.
When you face your problems, life has a tendency to get better. I know it will for you. I'm sending positive thoughts your way and hope the clouds start parting for you and letting the sun back in.
I know it feels like you're never going to find another job and this will follow you around for the rest of your life, but it's just not true. Life is filled with surprises & no one knows what's around the next corner. Just let today happen and don't worry about tomorrow until it's here. If there's one thing I've learned it's that you don't have to dwell on the bad stuff. It will make sure it's noticed all by itself & doesn't need your help.
You've made a brave move. Dwell on that. And be proud of your good choice - the first of many, I hope!
Well done and good luck to you.