Solving the problem of gambling addiction is always better with the help of others than alone, but I wouldn't advise family, or close friends, over professional help. Your close ones can help you with finding a good doctor, and they can be supporting during the process of healing, and that's the best they can do. They cannot replace professional help.
Why you say so that they cant help or wont be that relevant? Professional help is indeed better but doesnt men that friends help wont be helpful at all.
Solving problem alone is rather be the first to be tried out rather than on seeking out for another help from loved ones or professional.
Self realizations is much more effect and doesnt only talks in terms of financial concern but also wont really be requiring too much effort
or not really hassle at all.
If you do find out yourself to be that impulsive or emotion towards gambling then better to avoid it out while its still early or dont make yourself get
attached to it.
Aside from professional help, your loved ones or family will care more than anyone else.
simple example, if you are sick or something harms you or suffers, who will take care, wait and give you good advice, whether someone else.
families will care more and try so that their family members do not suffer, especially parents and they know better what to do for their children even though it is wrong.
So, I think the people we love and also love us will care more about us if we are suffering and whatever.