You should be thinking of how to capitalize and leverage on your
MDIS IT diploma certificate. Are your interests in IT? If not, you
wouldnt enroll and study for it right?
Have you ever consider getting a job after NS? IT related work?
Then a year on from working, decide to take up a part time course
either management or IT?
Why its better? Cuz by getting a job, first, you get actual
working experience. Second, you build on your IT diploma and at the
same time you earn money to provide for yourself and money for your
next education cert.
If you plunged again to another SIM course or what, what if
later you are unable to cope? Or not interested in the field? or
you have money concerns?
Also, your self-esteem will be higher when you started work. If
you join MDIS alumni, seek the alumni organization's help to get
you a related job, or ask someone you know from there to be your
referree for reference letters.
For you, 2 good reference letters from Acad director or course
lecturer or supervisor from MDIS and your SAF NS OC or CO should
suffice.
Think about this choice. Might work out better for you.