Just 40 minutes a day and not every day.
That is good. It will help you to prevent to become an addicting person in gambling besides that, and you can enjoy the game without risking too much money. It is better not to spend more money because we cannot always win and it will better if the money is not our reason to play gambling. We can still enjoy the game, having fun with other people or our friends and we can limit the money we spend on the game.