I'm a kind of superstitious person...
I don't like people playing around my head as Cambodian people said (Cambodia is Asian country locating
Near Thailand, Vietnam, and Laos.)
You will be stupid if someone hit your head by using their hand, pen, clothes...
I was even told that if you walk under the place where clothes are hanging your will be come a stupid person too.
I was fulfilled with this idea since I were kid.
So I always care when with thiese thing... when somebody touch my head I always touch their head back no matter
What the reason is; either they like my hair style, or something dropping on my hair,or they have intent to hit my head.
Until now I'm 19 year old
Some of my friends still keep playing around my head, and I really don't
Like it at all I want to scream and tell them that stop ing playing around my head
And get a away from me, but I can't do that because I think our friendship will
Be destroyed and I as here I live in hostel in section place I don't want to make
Enemy by this. I also try to tell them sometime in polite way, but no one most of them
Don't understand me, and never do as I said. Especially some of them are bigger than me so that I can't do
Anything to again them well, meaning I want to fight them but I can't.
How can I cope with this problem??
Sometime I feel very bad and can not study well because of this.

If you wear a hat, will it still give you the same superstition? They technically wouldn't be touching your head, so it shouldn't count right?:)

You know that it is a superstition and only that and I suggest whenever you are feeling stressed about it you remind yourself that it is not a fact.
Give yourself a mental pep talk and tell yourself you are too intelligent to believe in a silly superstition.
Continue to do this and retrain your thinking until you get over this.
If a superstition is interfering with your life than perhaps you need to talk to a counselor about it.