Abstract: The digital therapy system collects data about the user from a user device. For example, the digital therapy system may collect data about the user's physical and mental health from the user through the user device. The digital therapy system then generates biomarker characteristics for the user. Biomarker characteristics are characteristics that describe a user's FM. The digital therapy system may generate the biomarker characteristics for a user by applying a biomarker model to data about the user. The digital therapy system can use the biomarker characteristics to determine a treatment plan for the user. A treatment plan is a set of treatment assignments that aid a user in alleviating or coping with symptoms from their FM in accordance with CBT techniques. The digital therapy system may also adjust the treatment plan for the user based on additional data that the digital therapy system receives.