Yes an addicted gambler can work themselves out of gambling at any time they decide to work them selves out of it. You only need to want to work on yourself whenever you see that you are no longer happy with how addicted you have been gambling. The reason why some of them do find it difficult to exit is because they literally have not accepted that gambling is affecting them already and they do not want to continue in that direct of addiction they have been and so they find it hard and make it look like it is hard to quit addiction. .
It's not that simple to work oneself out of gambling addiction mate, don't make it sound like it's that easy especially when you haven't had an experience in it to know how it's like to be a gambling addict. People that have been into that ugly grip of gambling addiction would explain better, because it's something they would not wish on their worst enemy.
Exactly mate, sometimes I wonder and get shocked when people claim and see gambling addiction as some sort of easy thing to get out from. Infact generally addictive mentality to anything at all be it drugs, gambling trust me it's definitely not that easy to get out of the grip. The funny part is that you would want to stop so badly but in all your efforts sometimes if you are not watchful you will still get back to that same taught of wanting to try out more hoping you can replicate such chances you have gotten that led to victory.