College students who are serving as soldiers usually only go for two years, mainly because they are conscripts in these two years, which can be regarded as fulfilling their obligations to the country, and the school will keep your student status for you. However, when you choose to continue serving two years later, whether you are admitted to a military school or transferred to a non-commissioned officer, according to the regulations, the school will no longer retain your student status. Many people choose to retire because of their student status.
There are also some college students who transfer to non-commissioned officers after joining the army, or even get promoted after entering military schools, but this means that they have no student status and cannot complete their college studies after leaving the army.
According to the general road, it is impossible. You can only choose between finishing your studies and staying in the team and transferring to non-commissioned officers. However, you may spend some money at school to help you get your diploma. However, if you want to go back to school to be a soldier, that's impossible.