No one could really help you to get out on addiction but it would mostly start from ourselves same as you said but there are instances on which you would need a hand if you cant really do it for yourself.Seeking for others help isnt bad at all as long you are really sensible or serious to quit such addiction and as being mentioned on op if you do experience loss better to take a break and calm down before you would able to do wrong move even more.
You know, when a person gets addicted of gambling, he doesn't or maybe he cannot see anything happening to him. Though for a while he may think about what he has lost and he shouldn't do it again, but after some time he would start thinking again about gambling back and recovering the money he has just lost, and that is where the person screws himself.