First off, congrats on setting up the RESP early and actively investing in it!
Secondly, I can't give any advice on what to invest in at this point because I don't know enough about it, but I wanted to warn you about the one thing I did learn... lower your risk when you get closer to needing the money!
I am less than 6 months out from needing the money and in January had enough to fully cover 4 years of expenses, now I barely enough to cover 2.5 years, and it's continuing to drop. The worst part is that I contacted my advisor about 6 months ago to have my risk lowered and he talked me out of it! (long story, won't get it into it here)
Anyway, don't make the same mistake I did!
And again, seriously... good on you for doing this!