I understand he importance of changing negative thinking, thus leading to the changing of one's behavior. However, I feel that my negative thoughts are so automatic, I don't even know when I'm thinking them. I'm not very conscious of it. Having to monitor my thoughts seems like such a grueling task. I easily get frustrated when I try to monitor myself and often give up. If I am successful in monitoring my thoughts and replacing the negatives with the positive ones, I only have that for a day or two and then it goes away. I can seem to keep it going continuously and consistently. Any suggestions?