1st of all, congrats!
well, the most important thing:
don't choose medicine just because you scored in your exams...
score in your exams cause you chose medicine!
well.. i knew i wanted to be a doctor since i was 5.. never wavered from then...
always had to crack my skull to write 2 more options during primary school
(anyone still remember the small card you have to fill, including 3 cita-cita?)

i joined st. john's ambulance since std 5, just to get a feel of the first aid training..
never went to any hospitals for training..
medicine is fun, lots of problem solving, no patient is the same as the previous one..
you can have the most canggih meds & equipment to heal (& kill) people..
people treat you different, your friends & relatives consult you from the 1st day you entered medical school (even though you've only just learnt about the anatomy & physiology)
learning in medicine never stops.. the day you graduate is just the 1st step to the wide world of medicine..
you'll be a doctor till the day you die..

(YES, there is a LOT to memorize)