Actually we do not need an excuse to stop gambling. Gambling is not a very good thing to always do, but as long as we can control ourselves during gambling, we can get away from bad things. But the decision to stop gambling is a decision that must be respected without having to question why.
True, gambling is truly addicting and if you want to leave in gambling activities, you need to be serious because it is hard to avoid to involve in gambling.
You need to think the result of gambling if you continued in this doing, it is not profitable and lucrative. Much better to waste the time to the family and find alternative activies like sport that are much helpful to take out the stress.