Building Emotional Self-Awareness Teletherapy (BEST)

Inclusion Criteria: * Mild TBI (determined by Ohio State University TBI Identification Method) * ≥18 years old * U.S. resident (exclusion for California residents) * ≥6 months post-TBI * elevated alexithymia and emotion dysregulation (defined by \>.5 standard deviation above means on the TAS-20 and DERS) * capacity to consent * proficient English * if on medications that influence affect, must be stable for at least 6 weeks * access to a device capable of video conferencing and high speed internet. Exclusion Criteria: * Premorbid neurological disorder other than TBI (e.g., stroke), active or uncontrolled major psychiatric disorder and/ or disorder that would pose a safety concern (e.g., borderline personality disorder) * degenerative neurologic condition * visual, hearing, communication, or cognitive impairments that would impede participation * unstable or anticipated medication changes that will influence mood/ affect during study participation * active involvement in an intensive rehabilitation program * individuals who recently started psychotherapy (e.g., \< 3 months ago) * participant behaviors that cause concern for their ability to participate in accordance with the study requirements and protocol (e.g., unreliable correspondences, no-shows, no-replies to multiple contacts, habitual rescheduling, unable to complete study requirements in timely manner) * concurrent participation in any other clinical trial that aims to improve mood/ behavioral functioning will be an exclusion criterion. * participants will be excluded if at any point, they participated in TREAT (in-person clinical trial of BEST - NCT03414463)