It wouldn't have been for me because what the therapist did was to help me go through those thought processes regularly, without the use of worksheets (we never used them) so that I could apply that process not to just what I thought was big and important, but also to things I would never have thought to apply it to. He helped me really internalize that process to the point where it became second nature to me. I really don't think I would have been able to really do that completely on my own with just worksheets.