(i have had to do this one time. I was 25. I won.)
If you are being threatened, bullied, intimidated, harassed, catcalled, your bully expects you to act scared, run, beg for mercy, offer lunch money, votes, whatever.
But if you turn around, stare them in the eye, growl and scream loudly from your guts like a big cat, and run toward them with every intent to rip their eyeballs out, most of them will be so surprised and startled that the starch may go right out of them. THEY may run. And if you catch them or they catch you..... BITE THEM!!!!! Rip pieces off! Go all Mike Tyson on that shit!
People are viscerally terrified of animal bites. Which is why K9 officers are so effective, even when not actually deployed.
Eveyone is afraid of a berserker - the crazy fucker who has nothing in their mind but ripping you to pieces. If you've never seen a Chihuahua terrorize a larger dog, this may be news - but attitude counts; singleminded rage is rocket-fuel. Learn where yours is. Learn to use it. Learn to channel it to a white-hot point, not a loud flashy explosion that accomplishes nothing. That's the hard part. Not wasting the force. Turn the shotgun scatter of hot anger into a single psychic projectile of cold rage.
Be like my old Bel-dog. No warning barks, just a slight head movement and a sharpening of the gaze. Do not telegraph your intentions. Coil and strike. This takes a lot of mental work over the years, to sharpen and speed that strike. Even tho i am old, i have practiced much; I can catch flies out of the air, my hand is more effective than a swatter. Focus. I can't focus much in average life unless i;m on a hyperfixated interest, but as many ADHD people know, when our superpowers are activated, shit happens very fast. Many EMTs and E.R. staff are of this valuable neurotype.
I hope you never have to fight someone. i hope i never have to fight again. But if you do - fight at 110% to completely neutralize the threat. You may be hurt, perhaps badly. If you are in berserker midset, you won't care. If it's a sex crime, do us all a favor; gouge their eyes out. If i have my knife on me. and i usually do, i'll finish that job appropriately. #Boudicca