If you don't graduate from college when you join the army, the local government will keep your student status, and you can continue to enter school to complete your studies after you leave the army.

After graduating from the army and completing compulsory service, the army will count your school age in your length of military service. In other words, it's not bad to be a noncommissioned officer for two years directly after serving as a soldier for two years. Considering that the newly trained monitor is only a corporal, when you are a conscript for two years and directly become a non-commissioned officer for two years, he should call you monitor.