""I spoke to everyone and they all think I am wrong" is a different statement than "I spoke to everyone and they all think you are wrong".
Continously being told to "be wrong" can instill such doubts, but more precisely it would be me worrying about you "seeing it wrong", not accusing you of _being_ wrong about something. Your quote does not necessarily carry that meaning.
"I spoke to everyone" is, by definition, not a single statement.
Everyone telling you you're wrong definitely can instill doubts about your perception.