depends on what your well enough means. personally right, I feel
H2 and H1 take about the same effort, as they like to combine those
classes and notes together, so dropping does not really help. Also,
in J1, ur results for some subjects(like chem and gp) may be very
dissapointing, but I've seen many of my classmates including myself
move from a fail to an A grade by prelims.
Perhaps I would only consider dropping if I hold no interest for
a subject..