This. HIIT style condition will increase your endurance and work capacity while allowing you to stay lean, get jacked and fuck bitches. I mean ace your school work.
Kettle bell swings, battle ropes, etc. Do a 1:3 ratio of work:rest. So 15s on 45s off. Start at 5 minutes twice a week and work up to 3x10-20 minutes.
It shouldn't affect your recovery too much if you start small and work at it over a 6-12 week progression.