I have 4 lessons a cycle, but some schools I know only have 1 lesson of extension per cycle.
uh, im going to call BS on this one. 1 lesson per cycle isnt enough to reach the number of required hours, unless ofcourse the 1 lesson per cycle is 4 hours long. so you have been mis informed
anyway, yea you can still probably get into an extension class now, its only been what? 4 weeks? nothing really, especially if you want to pick up english extension, cause the whole prelim course is a bunch of crap, totally unrelated to the hsc course
so yea go for it, ive heard of people picking up 2u subjects much later than 4 weeks into year 11