Chances of being the only kiter at a common spot are slim to none these days. If you do find yourself alone, it's prolly due to it being the wrong wind direction for the spot.
As far as self launching/landing, imo it's not a skill for a beginner, but can be self-taught safely via the tether technique. Bottom line is that assisted launch/land is the best and safest method.
Although it looks like it's doming today (decoupling), you may find some kiters at cherry beach. I suggest that you go down and check it out, and introduce yourself to some of the kiters. We are generally a friendly bunch.
My other suggestion is to develop your skills at more beginner friendly kite spots. The Toronto spots aren't the easiest to learn to ride in. The best spots for beginners are oliphant, and Mitchells bay. This time of year wasaga is a good spot, but will not be a good spot come July-October, due to waves, and restrictions on kiting.