If you're in crisis
If you need to talk to someone immediately in the UK or Ireland then try Samaritans on 116 123. The number is free to call, confidential, and 24/7. You can also email them at firstname.lastname@example.org. You could also phone a trusted friend.
If you are upset because you had given up gambling but have given in to cravings, then don't beat yourself up. Just start again afresh. Today is a new day, and now is a new time. Remember, there is hope.