Strategic gambling is the key factor responsible for good gambling. Some gamblers goes into it without his or her unique gambling pattern and that is the major causes of failure and constant lost in it. Going into gambling is same as going into business no matter how small or big, it requires identifying your reasons and a systematic business plan that drives once daily activities. All successful business men works with plans that helps them achieve their goals, so any gambler that doesn't have such itemized gambling strategy ends up being a loser.
You are right to an extent, do you know that your pattern of gambling may not favour you continuosly, although you might be lucky to win with whichever pattern you gamble with for sometime but one thing you should know is that such pattern may faile at anytime and thats what makes it gambling, it will better for a gambler to gambler with the mindset that losing may occur at anytime this will help in reshaping his mindset to bet or gamble with what he will be able to forgo in case of any ugly situations, being strategic also means being responsible for your actions and knowing what to do at all time as a gambler, not because you will win but at least making sure that as you gamble, you don't invite much loss.