Funded by The Jordan Elizabeth Harris Foundation, this study uses a Sequential Multiple Assignment Randomized Trial (SMART) design to evaluate how various sequences and doses of BCBT components differentially impact suicide risk. In this two-stage clinical trial, all participants will initially receive 4 sessions of BCBT and complete weekly assessments. They will also complete 4 weeks of ecological momentary assessment (EMA) and digital phenotyping procedures during the first month of treatment.