For me it doesn't matter whether I'm doing well gambling or not. Unlike what seems like quite a few people here, I'm not addicted to gambling, so I don't gamble terribly often like it seems many people do here.
Now lets say I'm gambling and I hit a big jackpot, I would more than likely use the proceeds for animal charities, rather than gift it to others, but it depends on how large the winnings are.
The best is to gamble less so that we don't become too addicted to gambling looking at how so many gamblers are getting worse everyday in gambling. The reason why we will keep seeing so many gamblers having addiction is because of lack of discipline.
I align with your view, if gamblers could overcome excess gambling by gambling less, then their gambling issues are half solved. They can truly do it with discipline and it should reflect in their wagering amount, daily betting limits (time and number of betting) and overall gambling plans and management. This is not an easy task for some gamblers due to the situation they find themselves in, as they are so desperate for the money for one reason or another, not knowing that gambling is the wrong door to knock.