u can earn ofcourse is a advantage and moreover u have some fun and thrill involved.
and what about the money lost ? moreover the entertainment sometimes get converted in anxiety
If you can manage it accordingly, I don't see how doing some innocent gambling from tiem to time could bring anyone any problems of anxiety. If you are not betting a ridiculus amount of money, there is no chance of anxiety, because anxiety only happens when you start betting way too much for your pocket.