My suggestion is to get off the high RPM kick.... Having high rpm for any reason is not a good thing - if you slip off the clutch especially on that light bike of yours it is sure to end you up in a ditch.So while my original lesson of "road bike + gravel = doesn't go too well" still stands, I think I understand more about why I had my accident.
Last week I had another accident. The exact same story as before only this time I was at a set of traffic lights, turning left, ran wide, collected the kerb and landed onto the bottom of the mall in the middle of town. So I narrowed it down to my cornering from a standing start. Now I was taught to keep my revs high-ish and just ease the clutch out which I've been doing, or so I thought. It seems I've only been doing this in a straight line. I've been sitting here thinking about both accidents and have come to the conclusion that my initial takeoff is fine but as I get to about mid-corner I'm just dumping the clutch, which is landing me in the middle of my powerband thanks to my high-ish revs. Suddenly I have loads of power, I panic, ease off the throttle, run wide and suddenly find myself up the proverbial creek without any paddling apparatus.
I came to riding as what I would consider a fairly capable driver.. but only a driver of automatic transmission vehicles. So I've never had to learn the finer art of gears and the clutch. I understand how it works but putting into practice is something else. The bike has been repaired and my bruises have healed so, as soon as the weather stops being so rough, I'm hitting the carparks to learn to feather the clutch at slow speeds.
I should have known better after my first accident. I knew I should have spent more time in the carparks doing what I felt I needed to but instead I listened to what my friend/riding buddy wanted to do (I am not blaming him) and wanted to practice. I always knew I should be riding for me and within my limits but now I understand it.
So there's several lessons learned now.. but I'm sick of learning them the hard way. I've enquired about private tuition and looks like the best I can get is $100per hour but I think it should be worth it.
Change your whole scheme - I say learn how to take off going stright using the throttle and the clutch - blip the throttle if you have to - on that bike you should not be taking off any more then say 3 - 4000 RPM and thats even high in my opinion.
the trick about taking off is that in the middle of the turn normal steering does not work any more - you have to counter steer once you get up to 8 - 10 mph
I suggest at a minimum go to a parking lot with a friend and set up some cones.
I suggest that you take some sort of course - $100 is a small price to pay if it will save your bike, your gear, and yourself.
Good luck - We are rooting for ya!
kenny