just hang in there, if the school standard is very high, chances
are that you'll find the O level paper itself "no kick"
i was as bad as you in Amaths before, failed from start of sec3 to
sec4 prelim, but somehow, the O level paper was very easy.
TYS really helps, you will eventually see how straightforward the
questions are, since amaths problems aren't as flexible as
emaths.