Decesion making and Human mind

Sometimes we have to take some decesion and our mind dilly dallies. Many times in such a situation we take decesion and then try to convince ourselves how our decesion is correct.We think of all possible reasons justifying our decesion , but we dont realise that only time will tell whether our decesion was right or wrong and that time it would not be worth remuniating on the same