you have to give the new behaviors time, lots of time. think of how long you have been practicing the old behaviors....years upon years....you have only been doing cbt for six months.....it took me a good two years to replace positive thoughts for my automatic negative thoughts. it seemed long process at the time but now I see how far I have come. It is long hard work, but you have your whole life and each day it gets better and better. keep up the good work....take care