First, think about what's gambling to me. Is it more important to me than anything else in the world that I can easily sacrifice? Is this habit of me is hard for the people who love me? Is it worth it to quit for them? But if it's negatively affecting my life, then nobody needs to advice me, I will quit at my own will. I don't like addiction to anything.
I don't know about quitting, it depends on the situation, because if gambling helps me get financially stable, then I might rethink about quitting it. Even if it's good for me but my family thinks differently, then I'll consider quitting this for sure. I can find another source for money, but I can't find another source for love easily.