Our brain can be our worst enemy, but also our good friend. It needs to be educated. Is education ever easy? No usually. It is reading, thinking, writing, focussing, paying attention, assimilating, recalling. It is effort and work.
Does learning happen overnight? Not generally. Will our brain become our friend with CBT overnight? Not likely. But with CBT there is the potential. We become so busy trying to win our brain as our friend, there is no time or energy to waste on the Grim Reaper.