they only did an emergency stop at 10mph? mine was at 30mph and they complained if you did'nt stop quick and safe enough, or went to slow into it. I guess though having done a CBT just over a year ago, that they could be alot more in depth. its true ythey odnt show you alot, but that experience i worked up in no time, (averaged 200miles a week)
but yeah they best place is a clear carpark, then you can really learn how quick your bike can stop, how good your brakes are and such, i used my local Waitrose one. Also attempted a few stoppies and wheelies to see if i could get the back or the front up, nope, it stayed planted, thats a good thing, dont look very cool though.

keep at it mate, we all have to start somewhere, unfortunately crashing is all part of riding, it will happen.
good to hear your getting better now mate.