Anything as long as addiction will not result good to yourself, if this is gambling addiction it will ruin your life as you will be wasting your money, this would bring a lot of negative effect including problems within the family.
Yes, they are both going to make the person in question end up getting screwed anyway and get them totally ruined like you have said. I feel people tend towards addiction when they over do things and they make their life depend on it, and that is usually the start of their problem generally. Lack of control of oneself is actually where the whole issue starts as such a person eventually gets overwhelmed in their crazy activities.
It's hard if you're a gambling addict, but you should always try to end it although it takes a long process at least a little change because it all depends on your intentions.
Terribly hard as you are just going to end up getting yourself badly screwed at the end being an addict. It is always a long process filled with a huge determination to quit and trying to fight between staying sane and staying insane at the end of the day. I have seen addicts in every form and there is no way anyone will ever want to be in such shoes, which is why the earlier someone controls themselves the better so as not to even get so close into that world of an addict.