There are many situations in life where one does something that is "optimal" but factors beyond their control cause it to be unsuccessful. Being clear-eyed and able to distinguish between luck and non-optimal strategy is an important part of improving as a person.
There are times that changing the original strategy/task/behavior is not the optimal thing to do, but your "no luck" world view does not allow for that possibility.
There are times that changing the original strategy/task/behavior is not the optimal thing to do, but your "no luck" world view does not allow for that possibility.