Most of these are rubbish. I received a self-defense for women class once and the instructor went through this list item by item and rebutted most of them as absolutely ridiculous.
If you want stuff that makes sense, then:
A) If you’re grabbed and you’re facing your attacker, knee up HARD and push out your arms, with your elbows pointed, very forcefully.
B) Be on the alert at all times. Don’t get caught unawares, for instance if you’re on a cell phone.
C) Look around BEFORE you enter a place, not while you’re there.
D) A purse can be a weapon, and a very effective one.
E) It can’t hurt to carry around pepper spray. (I’m serious.)
I took the class 3 years ago so I don’t remember so well, but that’s stuff that comes to mind fast.
May we never have to use it.