Discipline undoubtedly plays a big role in keeping a person's life on the right track, disciplined behavior can get us out of many bad habits, but the help of professionals or experts is definitely needed. Especially in the case of gambling addiction, when we are already addicted to it, our only way is to always work with the right mindset, be careful and always be disciplined. When someone becomes addicted to gambling, if discipline, family support and necessary professional help work together without neglecting him, then the chances of getting out of the addiction increase many times.
I agree that discipline is very important but I think discipline alone does not always work. People with gambling addiction often deny their problem, and then no matter how many rules are made, they break it. In that case family support and giving someone from outside to talk to can be very helpful, In my opinion the best results come when people start asking for change themselves and also get professional guidance. Discipline then becomes a habit rather than a pressure. It is more realistic to move forward with support than to fight alone.