CBT, not exclusively, but in conjunction with other therapy techniques, was hugely beneficial for me. I had so many deeply ingrained, mistaken beliefs about myself and the world that drove my emotions and moods. CBT worked well to help me challenge that old, toxic thinking and finally start to move on. But it won't happen overnight. It took me years to get to the state I was in, and it took me years to get through it so I could move forward. You have to have some patience with yourself and the process.