What trick? Like cheating the gambling itself? If that is what you will do then it's possible but if you are talking strategies on about timing or patterns then you are just making it hard and more complicated for yourself. It does not help and it's just another creative way to lose your money.
I wouldn't say that it is easy to hack/cheat in online gambling, but current security measures are implemented on the popular websites in my opinion and knowing that it would just be stupid to cheat because it's not the right way. You should be thinking about how you could improve your chances, not participating in illegal things that could lead to easy money, but that's just stupid.
Correct cheating is not a good way to earn money, better to play pair in all aspect in gambling but it is not bad to have your own strategy as long as you follow their rules. I think you should only need to have self discipline to avoid greediness and addiction because gambling is all about luck of each player, if you win you have a good luck but if you loose you have bad luck and you must try in the other day.