have you checked out the courses available in SG, and their
modules? You may like a certain degree course but not all the
modules will appeal to you. Similarly, you may not like a certain
degree course but there will be modules you like.. or something
like that. 
true... it's extremely important to have passion for what you're
doing...
but whatever it is, maybe a gap year is good for you lo... I'm sure
after a gap year you will gain new insight and hopefully find many
more new paths for you to choose from.....
or maybe you won't wanna study food tech
anymore... =X