I think there is no way to give up on gambling, just decrease the amount on your bet to the smallest. Don't let it effect to your life.
Even you're decreasing the amount of your bet then you still doing gambling. You're right no one will help you out of this situation just only yourself.
Try to ask help Lord for sure He can help us about this situation its not easy but there's nothing about trying.
If you guys religious enough then go do that. Realistically people would think it's just wasting time when you only put a hope without doing a concrete action. Just look at people around you who suffering huge lost , broke and even die just because of gambling problem. Make it as a lesson and stop yourself to think about the past. Move on to better life with a better habit rather than continue to gamble.