Our mind typically takes in what it already believes. This means that when there is evidence to challenge distortions such as fortune-telling and mind-reading, our brain will likely filter it out or make us actively reject offers of reassurance or positivity from others. Furthermore, we will magnify evidence that supports the anxious thought.
If you find yourself collecting evidence that supports your anxious negativity, be like a detective, and search for clues that disprove your anxious thoughts instead. Be persistent and keep looking because your anxious mind will be sneaky and try to hide them from you. Look for facts, and look for positive interpretations of those facts. What do you have to lose? (Answer: anxiety.)