 If you're expecting the worst, what do you think's gonna happen? You don't think or you don't believe that you're deserving of what you actually desire. So naturally, you're trying to protect yourself from the pain, from getting hurt. If you knew without a doubt, you were going to get whatever it is that you want. That phrase, it wouldn't even cross your mind. So by saying or thinking this phrase, you are conditioning your subconscious mind to attract the worst, which then attracts in the worst case scenario, which then further solidifies the belief that the worst always happens.