sorry TS,
just to tell you that if you are currently enrolled in
a government school, you are not allowed by seab to sit for
exams as private candidate.
and i suppose you will be taking ur N levels next year, and how
are you going to sit for 2 different exams at the same time, even
if ur able to register for both.
and for science subjects, as private candidate, you are required
to enrol in a recognised school for lab lessons, to prepare for the
practical tests, so just having a tutor is not enough.