Don't give up just yet! You've probably just started your ITE
course. Sorry to hear about you having to go to the hospital so
often, but hope that doesn't pull you down and only makes you
stronger.
Try your best for now and aim to do well. If you can't get into
a local poly, you can always take up private diploma and even
degree (as you move along). There are numerous recognised private
schools which are offering such diploma and degree courses. Stay
positive and hope you get well soon!