yuour mind cheats you. is that correct?
I mean. You cannot believe what you are thinking ,because you are under stress or a nervous breakdown, so your brain is not clear.
I dont know if you use the word "cheat" here.

thank you

Question

yuour mind cheats you.  is that correct?
I mean.  You cannot believe what you are thinking ,because you are under stress or a nervous breakdown, so your brain is not clear. 
I dont know if you use the word "cheat" here.

thank you

Answer

Often we say "deceives you" or "plays tricks on you."

Answer

Your mind is playing tricks on you.