I'm jealous! I have nobody to train with on realistic scenarios.
I'm a little guy too so this type of stuff I try to seek out so I'll be prepared if the time ever comes that I have to use my knowledge to offend off a BG
in real life...it's not a sport.....learn key points/pressure points...aim to strike them hard, wherever/however you can....as soon as you can....and you should be fine.....an easily accessed blade is a big advantage....once a wound is inflicted from it...most untrained people stop from fear, pain, psycological barriers....