Here is my proposal to eliminate problem gambling forever: scrap all laws restricting gambling. I know this might sound surprising (ok possibly crazy) but hear me on...
Today it is extremely expensive to open a casino. I'm not sure what the laws for offline casino are, but license costs for a new online casino are 100s of 1000s to millions USD per year. Subsequently there are very few companies that compete in this space -> there is artificially limited supply -> the price for gambling is high. The price for gambling is the players average loss per bet (called the house edge). It varies from a few % to over 10% for most casino games. It's what makes the gambler loose in the long run.
Say online gambling were legal in the US. There would be way way more online casinos competing for the player. This competition would drive down the house edge to either very close to or actually 0. A 0% house edge would do away with problem gambling. Gambling addicts make 1000s of bets per day, and the law of big numbers dictates that they would not loose money over the long run. This does not even factor in that online casinos would be VC funded, and would not need to make a profit for a long time, which would drive down the price even further.
This isn't just a lofty libertarian theory. The bitcoin gambling market is largely deregulated and the house edge in bitcoin casinos is way lower (1% - 0.1%) than for regulated casinos. Recall that regulated casinos have to somehow pay huge licensing costs to the state, that's money that their players have to loose.
Long story short, it is my conviction that online gambling laws are what make gambling addicts loose money (and much more, see article). Do away with the regulation and the market forces will lead to a state where gambling addicts do not loose any more money.