You still have time to play with the idea of whether or not to drop society. Personally I'm thinking of taking 14 units into HSC year (all my prelim subjects), then drop them as I go. <~ also in 2015'er
I guess since society and culture has a major project, if you have sucky time management it may get difficult. All in all, it's probably a better idea to wait until you have an idea of how well you're doing in society before you ~chose to drop~. Have a look at Rumbleroar's post in
http://community.boredofstudies.org/1054/general-discussion-2014-hsc/319369/should-i-drop-ipt.html The drawing up a table seems like a pretty neat idea
EDIT: @Panda15, 14 units isn't too bad time wise. I only have 2 morning classes a week and no afternoon c: That's leaves me the average student's study time in the afternoon. I get that it's extra workload... I guess I'm just a super nerd for loving all my subjects