Is gambling OK? Don't bet it! There's not an easy or instantly obvious proof text answer to that question.
The Bible does not directly mention gambling problem. But People gamble because they want to get rich quickly, so that they become people who love money. And, the Bible says the love of money as "a root of all sorts of injurious things"
Many people who gamble eventually became addicted. It happens everywhere. In the United States , it's estimated there are millions of people who are addicted to gambling.
Yes, the only problem is the addiction. It's hypocrisy to doesn't worry about money, everyone wants it to buy nice things and live better, more confortably, it's not a crime. You can try to become rich, you can try to make money. I think God wants to see everyone happy since they don't harm others, and if gambling makes someone happy, go on... Just avoid the addiction.
Remember, the goal here is to make money, if you are losing too much with gambling, stop with that.