I am a licenced beginner motorcyclist, having completed a training course in Canada and earned my M2. I own a used 1984 Honda Hawk which runs beautifully. Sadly I had to leave Canada a while back, and other than the training course and small rides around the neighbourhood, I haven't had much time or experience with riding.
Now here's a query I have because I really, honestly do not know this:
Say I'm riding along on third gear, can I switch down to second and keep riding without issues?
I ask this because during my training course I was riding along in a straight line on second gear, when I switched down to first and let go of the clutch the bike lurched forward and I lost control and I fell to the side skidding a bit (excellent protective gear protected me and all I got was some road rash).
So I figure you can't just switch gears down like that, like on a car (and even with cars I don't even really know, I don't have a driver's licence nor have I ever driven a car).
I know this is all "slap-on-the-forehead" dumb, but I really am concerned.

I sometimes feel my heart racing when I think about finally riding again, because I'm worried something like what happened on the training course may happen on the street in public!
I do plan to make many practice runs in a parking lot before I even dare to ride out again, that's for sure.
So please, humour me and help me out. Thank you!!