Senior Chief Petty Officer. Starfleet is in my blood, and I've spent my entire adult life in service to boldly going.
Keiko and Molly are my favorite humans, but Transporter Room 3 will always be my favorite.
Just don't ask who what's in the pattern buffer.
I'm not going to tell you you're wrong about having a type of advantage due to size, but I will say in actual fights, unless you're against someone the size of Halfþor Bjornsson, it won't matter enough to protect you.
And when it comes to knife fights, one person dies on the spot, the other gets to die on the way to the hospital.
Someone once said "Everyone has a plan until they get punched in the mouth"
Keep attending self-defense classes and learn to kick assailant ass the proper way!