The only thing that a gambler could do when he is addicted would be to stop right when he gets that feeling to stop.
Addicted gamblers will never find himself want to stop his gambling moreover they never feel about their addictions and hence they are good with what they are already doing. That is the reason gambling addictions, most of the times discovered at its severe stages
Even if there is a person that forces the gambler to stop, the gambler is likely to stay with the gambling mentality that was not yet relieved and that gambler is just going to stress himself out while endangering the people that surround him/her.
But in the case of, if that person is his most loved one and then the chances will be higher as anyone will find his responsibility only through beloved ones.
Trying to play with fake money might work against gambling addiction.
Yes, fake money/demo accounts/restricted access to gambling sites/restricted access to bitcoins/gambling under supervising are few of working ideas for both the purposes of getting rid from gambling addictions and for preventing addictions.