Emerging adults with obesity are at risk of developing further health problems as they progress into adulthood. There are limited interventions developed for this population, and no interventions specifically study the role of mood and positive affect on improving motivation for healthy lifestyles. Positive psychological wellbeing is linked to improved cardiometabolic risk and health via improved health behaviors and biological functioning. Given biological and psychological differences between males and females during this transition period, targeted interventions for each gender are needed. In this small pilot study, Quality of Life Therapy (QOLT), an empirically-supported and manual-guided intervention combining CBT and positive psychology techniques, will be adapted for emerging adult females with obesity. For this small pilot, we will use a sample of emerging adult females with obesity (EAO) 18-25 years to refine and test feasibility of QOLT adapted for this specific population (QOLT-EAO), with a focus on developing motivation for healthy lifestyles.