No subject is specifically difficult or easy, it depends on the effort you're willing to put into each subject. Having said that, quite a few of your subjects awe time consuming and require constant revision, so make sure to keep up to date. :)
I read King Lear as we're doing it later this year and I can totally relate, it is a bit of a yawn but it's ok I guess haha I don't know about Eco but I get hella lot of bio homework :ad my cohort is about 180 kids but wow yours is huge!! And no worries for the questions