Get ahead on IAs or revise?

G'day folks, N25 here. I've completed all the EE homework that my school assigned for me to do over the summer break, and now I have an extra two weeks left to spare before school starts again. I can work on my IAs which will be due in late March, or I can use that time to revise. Should I use that surplus of time to review my subjects(haven't touched them in 2 months) or get just continue grinding the IAs?