Sort of... it's learning to recognize when your brain starts looping and giving you the skills to be able to hit ctrl + c, while at the same time teaching you h

Sort of... it's learning to recognize when your brain starts looping and giving you the skills to be able to hit ctrl + c, while at the same time teaching you how to not write loops in the first place. GAD and PTSD and all that spectrum are coping mechanisms, they're just maladaptive. CBT teaches you how to cope productively. (personal opinion incoming), I think a person can get to the point where they need an SSRI as a stepping stone to even have the energy/capability to benefit from CBT, then they learn adaptive behavior, then they can dump the SSRI and let their new skills handle day-to-day life. The "underlying reasons" are only useful inasmuch as you know what to look for so you can proactively start coping/remove yourself from maladaptive situations, but IMO most people try way too hard with the "why" stuff. The only thing that matters is "what now?"