Is it possible to brainwash yourself, and if so can you undo it?

Answers:
Yes, you can tell yourself your whole life that you hate a specific food and naturally, you won't like it because you keep telling yourself that.I overcame that one. I told myself all my life that I didn't like chili or goulash. But one day my b/f's mother made a goulash and I didn't want to be rude or impolite and not eat the very food that she just made for us! So I told myself hey, I think I will like it because it has macaroni noodles and spaghetti sauce and cheese, what more could I ask for and why would I not like it? I tried it and I LOVED her recipe! So you basically have to tell yourself the opposite and tell yourself that you're not afraid of certain things or whatever the case may be, you can get yourself to believe anything that you want to.

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YES, YES A GOOD EXAMPLE IS A SPIDER PHOBIA WHICH CAN BE FIXED THROUGH BEHAVOUR MODIFICATION THERAPY

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more usual is to let yourself be brainwashed ,like what happens with a lot of religions.
to undo is always hard work .and means thinking alot.

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Yes. An example is like when someone comes up with a good lie or something like that and they tell it so much that they actually start to believe it. I've seen it happen.

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