Limit yourself to a certain amount of funds for gambling, so for instance if you lost $1k in a day/week you stop and wait for another day or week, this could help you to minimize gambling as a revenge to get your lost money back which usually gets gamblers trapped in a very long gambling sessions which will eventually make you addicted.

Generally if you gamble for more than 1-2 hours a day you should be really careful about your gambling habits as it starts from 2-3 hours a day and could increase to 5 or more hours a day if you got that much enough time to kill.