The strategy may not work well for you or is not enough to win but you should continue with patience. In fact, the efforts that we consider useless are not actually useless because we are gaining new experiences by losing in gambling.
You can not continue in patient with a strategy that shows no results. Besides losing doesn't signifies gaining new experience. You can still be losing and not gaining any new experience. Like I will always say, there is no strategy that works perfectly right no matter how you switch from strategy to strategy. Gambling is like flipping a coin, you don't know the side that may likely come, it is a 50/50 Chance but if one side comes repeatedly we then assume we know the strategy perhaps it just luck.
How does changing your strategy affect you in gambling?
Changing strategy does not work for me, I gamble using past analysis. If I win I win if I lose I lose. Sometimes changing strategy make me confused.