Cico as a student?

Im in uni and i tend to binge when I study, I have to sit approximately 5-6 hours a day while studying. Can I some get tips as to how to maintain cico during this time? I've tried volume eating but I always yo-yo around my diet as the stress from studying makes me exhausted if im not full all the time. Current weight 61kg, 158cm. According to TDEE, my daily intake should be around 1350kcal. Should i focus more on getting the calories out through cardio? Please let me know what works best.