Something unchangeable

I’m from Iran and there is to many people that have come to U.S. to learn psychology to teach people to believe themselves and have purpose and take step for the way that they believe in it and these “talkers” have made so thoughtful and I thought that I’m self-awareness but the huge problem that I'm trying to deal with is people around me and many others that try to take steps and continue their path are very “ANGRY” and “Meaningless” etc and after Islamic revolution 1979 in iran only thing that you believe is “It’s not possible”.
Sorry for took your time