Find the closest empty mall parking lot and go there on a sunday after they close and practice for an hour or two, especially slow speed stuff. Just practice all the things you remember them teaching you. I see your sig says Mississauga. So Square One is probably close to you, however their security tend to ride around their lot often. I'd go to Sherway Gardens, that's where i practiced. On the far North/East side of their lot facing the Queensway there is a big section that is always empty, lots of people go there to practice. I used that spot when i was learning and i even ran across a couple of cops who came there one Sunday who were also just riding around practicing their slow speed stuff. They came up to me and i was worried they were going to boot me out lol, but they were cool and just came over to tell me to watch out of the corners because there are sometimes screws and bolts from salt trucks that park in the winters there in the corners.
When you have had some parking lot practice then find some not busy side streets, maybe and industrial area on a Sunday without many cars and get practiced at taking corners.
I found the hardest things my first time out on the streets was stalling a few times at stoplights, because of nerves and letting go of the clutch too soon. So practice your clutch control and friction point as much as you can. Also in the beginning i found taking right turns and staying in the right lane when i made the turn a bit hard, the tendency was to turn too wide. So practice slow speed, and practice your turns, those are the most important things i think. Riding fast is easy. As is changing gears. The most difficult things are slow speed manouevers, and getting good clutch control. Just take it slow at first. Doesn't take long.
PS - i still go to the Sherway lot anytime i'm bored and just want to practice my slow speed stuff as i live very close by there. So if you do want to practice there sometime and want a spotter or just company send me a pm here and i'll head over.