so im in university doing my bachelors in general science, haven't chosen my major yet, thing is, 1st semester i took all three sciences, but dropped physics the second semester coz i figured i ddnt need it for my major, now i NEED IT LIKE CRAZY!! coz ive decided to go into engineering,,,oops fr me!, so i decided to write my a levels and apply with those results,..but that means il have to study outside a schooling environment,,,well not really, still in school here,,,,,,buhhhhh, just wondering, is it wise, or shou;ld i just enroll in a form 6 class and take a gap year at uni?