Set up a satanic ritual with her picture in the middle. If she keeps barging in at least make it fun!

Speak to your dad, and tell him that if he doesn't make her stop, he should let you have a lock on your door. It's not right that he lets her carry on. She's clearly doing it on purpose, and there may be one day where it causes you to do more than faint.

Saran wrap across the door, face height, if the door opens outward. If it opens inward, glitter buckets. Definitely tell your dad and if he argues otherwise, record it. Put a sign on your door, stating that for your safety she needs to knock. Film the sign, then film her barging in, and social media it if this crap continues. And if you get hurt, take a few of those videos with you to the hospital and get her banned from your hospital room. Public humiliation has never gone out of vogue.

first go see a neurologist fainting when startled is a serious issue second if you have to get a personal protection order against your stepmother because what she is doing is torture and cruel and this would be considered emotional abuse and if your father is not willing to make her stop this would also be considered abuse on his part 😡

That’s the classic MILF porn move! Stepmom barges in, catches stepson masturbating, offers to “help,” complains about inattention from dad, ... bow, chicka, bow bow!

If there was an honest-to-god reason to choke a bitch, it would be this.

All I can see when you tell us are the fainting goats

Masterbate furiously.

Obviously she's doing it on purpose to assert some sort of narcissistic dominance over you.

start booby trapping the door