You just have to bite the bullet. Hop back on there and take it slow. Don't let taking it slow making you feel weak or anything like that. That's what I loved about the MSF course..they started you off at the bottom and slowly brought you up until you were actually riding a motorcycle.
I high-sided while I was in that course! haha Hate to admit it, but I did. Twice! Both times were during emergency stopping drills. Once was the first time we did them which was a straight line, and the second was during mid corner.
During the first drill I was able to do the stopping alright with no problem but the instructors (not their fault in any way) asked me to try and basically improve my stopping. (No, I wasn't so good that any improvement would lead to what happened.) So after about 3 or 4 runs, I locked up the front end. They had told us what to do, but when it's happening...that kind of things is out the window unless you truly know it! My immediate thought (in a split second) was "the bike isn't going where I want it to" so I tried to steer!

BAM! Right into the deck I went. Bike was fine, I was fine other than a bit of embarrassment. Hopped back on and finished that drill.
Second day...emergency stops during a corner. You're supposed to straighten up the bike to have maximum available traction during hard braking. I grabbed the brakes a bit early (probably too hard either way) and hadn't straightened up the bike all the way. Next thing I knew, there I was..on the deck again with the bike laying on my leg.
Fortunately, these two events happened before the graded evaluation!
Either way, I got up and hopped back on to do what I came there to do. I was wearing a full face helmet, padded and armored jacket, leather/steel toed/over the ankle boots, and some dickies pants.
After completing the course and getting my license. I was left to buy a bike. I did the course on a 250 Honda Rebel (insert laughter here) so it was quite a step up to get the 07 FZ6 I now have been riding for almost a month and for over 1000 city and interstate miles. I was fairly nervous the first time I rode the bike, but was gentle on all the controls and got my foot in the door.
At first I just rode around my neighborhood until I was more comfortable riding the bike itself as far as starting from a stop without stalling, braking, shifting, etc. Then I went out onto some larger roads, same deal. Eventually I got out onto some major roads around here, and then the interstate highways.
Long story short/point of all of this. Don't let an accident keep you from riding. I know it will make you nervous...I'm sure I'd be very nervous after a wreck with my bike..but you can't let that keep you from riding. Start off slow like I did in my initial learning and then just move up as you feel comfortable. When I was riding only in my neighborhood, I couldn't imagine riding on the highways here. Now I have no second thoughts about riding on them..except if there is a huge jam..which sucks! hehe But I've been there too.
Just take your time and ease back into it. There is NO rush! You will (and I will) be an amateur for quite some time! So try not to let that bother you at all...the safer you are, the better! :thumbup: