Well, the IB Diploma program is really hard indeed. I am a third-year IB student, I cannot stress enough how the toughness of the curriculum depends on your individual motivation and determination. The IB is made for the masses and depends only on how you organize your time and meet the deadlines given by the university. There is no specific time of being busy, it will completely last the whole semester even during holidays because there are always exams the week after each break. But, if you are one who manages time very well and is very disciplined by nature, doing well in IB shouldn’t be too hard for you.
Hope this review will be helpful