IPT is not really that hard of a subject, but in fact, it's considered one of the easier subjects. It's a great subject, and even though theres quite a bit of theory to learn, it is fun to learn and in some ways, relates to a bit of physics - such as binary representing voltage states. I'd recommend it for sure, and it doesn't matter if you haven't done any IT courses in year 10. You can still do computing subjects.