Replying to International Baccalaureate vs Regular highschool

I need to choose between doing full IB diploma or all regular Canadian classes next year. AP will not be offered at my school anymore. Right now I'm in all regular classes except for English Challenge (could be called a pre-IB class) and get about 90% in the courses I apply myself to. I will admit I have terrible work habits, I do about 30 minutes of homework a week, if that. I could change that if I need to though. What do you guys think about applying next year, and anyone in IB willing to offer some advice?