As Drdusk said, Ipt is not that conceptionally challenging, the majority of questions in my personal opinion is just common sense and is more dependent on how you structure your answer rather than technical diffculty.
The majority of it was rotue memorisation of information with just a hint of other practical stuff such as databases. I participated in the Y11 IPT yearlies, having not done IPT and just software development and i came third, this was with a week of studying. If you stay consistent with your studies IPT is a relativity easy subject which will require little work to excel