The thing with gambling of any sort is only to play with a set amount you can afford to lose and hopefully come out a winner .
And never try to recover your losses .
If you do have a win use it to benefit yourself in some way by getting something you need or want for you personally or your home or loved ones.
The problem with gambling is it can easily become an addiction and that is a real problem that can destroy marriages and families.
And society/Governments today are hypocritical as to their approach to this problem ,advertising is all over the media to wager in one form or another and on the other hand advertise against gambling.
Though I guess they are trying to strike a balance ,however they do benefit financially from gamblers overall.