am i making the wrong decision?

for the last few days, six to be exact
i went to a hospital from 830 till past 5
EVERY single day
a doc asked me to go to the hosp
to have a look
see whether i really want to be a doc

and yes, it's really exhasuting
but yet, i feel contented
coz i least i learnt a lot of stuff
i was posted at the laboratory
met a few interesting people that made my life there more bearable
and less boring
but
it's really tiring
i mean
i am a night person
and waking up so early in the morning
coming back home so late
i slept right away after reaching house
and felt lazy to do anything else but sleep
the thing is
the life a doctor leads is way more tiring than that
and me being the fun seeking person
am i willing to sacrifice my time
and do something that i think is worthy???
????
sigh
wish time will stay at form 6 forever:(
it was damn easy back then
went to school
watch tv and online 24/7
sleep
that's it
i miss school days!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
non stop laughter in the class
plus stress-free