I am an atheist, I would explain to you why, but that would take ages.
I think Iran needs to take it's relation with the west from negative to neutral.
regarding Israel, well they are the one of the few people in the middle east who actually respect Iranian culture. for example Cyrus the great saved the jew and let back back into Israel, and for that he is called the messiah in their holy book. even jesus was not called messiah by them.
we had nothing against Israel but after they killed out innocent people then that made us start to dislike them.