Prove Winston's fatalism leading to his downfall

Winston engages in unauthorized activities, all the while knowing  that he will most likely be caught. He keeps a diary in order to record events as he experiences them, even though he is very likely to get caught by the Thought Police. Similarly, he rents the room above a junk shop to use as a love nest with Julia despite the obvious risks. Finally, Winston trusts O’Brien, not suspecting that he is a loyal member of the Inner Party who is trying to entrap him.  Winston's attitude of "whatever happens, happens" is evident in the chances he takes.