Hi readyforchange,
Well done on taking the decision to give up gambling. Your circumstances are very normal for someone with a gambling problem in that you lost a large sum of money and now wish to stop.
My challenge to you is this, what is going to stop you gambling when you have not just lost a large sum of money?
Have you thought about practical steps you can take like self exclusion or surrendering control of your finances to someone trusted?
I am a recovering gambling addict myself and I sense willpower in your post. However, willpower alone is not enough to keep me or you stopped permanently, I know from experience.
I would like to hear from you again and hope things go well.
One step at a time. One day at a time.