One aspect that I think is less effective about this theory is that it seems like it will take a long time for it to be effective. Changing thought patterns and behaviors takes a lot of effort, and it can be difficult to work with people suffering from depression or other mental illnesses who are unmotivated or unwilling to try or seek help. I think, especially in people struggling with addiction, there is a lot of denial before getting help, so this therapy doesn't take into account the length of the denial phase. CBT can also help people face their fears, which can be very difficult and difficult for people, but although it is difficult for a while, it will pay off in the long run..