l would advice that you get the normal FRSC license instead of the international one, we made the same mistake and even considering travelling back to naija to get it. You see, with the international one, you can only drive for 3 mths here in alberta and it can be exchanged for their class 7 GDL i.e. learner's permit and you can't drive alone except you have someone with a full non-GDL license by your side, and there are other conditions too but with the regular one, you just write the test, do road test and you get the class 5 non-GDL. The implication is that with class 7 GDL, it will take another 3 yrs before you become a full class 5 non-GDL why wait 3 yrs when you can get it immediately and for most jobs here, you are required to have a class 5.
Go to www.saferoads.com to understand the Graduated Driver Licensing (GDL) system