We ,dont have a tips in how to not lose your token in gambling,but we have an advice to not lose all you have worked token and turn into nothing,and thats is "control" when  you receive a profits from your invedtment or something tokens coming from your bounty campaign or mining,you must separate the half of your labor token and make this as your savings and just forget it,that you have a savings,while the other half  is what you muat enjoy in gambling games and try to control yourself that if you lose you must quits and dont go back again and try your luck next time.