All participants will continue to receive their routine medical treatment under the supervision of their personal doctors (e.g., neurologists, psychiatrists, primary care physicians, therapists) while participating in the study. In addition to usual care, half of the participants in the study will receive the experimental telehealth treatment (TH-CBT; intervention group), immediately after enrolling in the research program. The other half will only receive usual care (control group) and will have the option to receive TH-CBT, after completing all study related assessments (9 months after the initial evaluation). Group assignment will be decided randomly (i.e., by chance).