Let me tell one thing, I have tremendous respect for the culture and history of Iran, its a beautiful country
I understand your country's difficulties with the USA. And Tshering22 is right about many points, although I don't agree with his view of the Shah. He was more or less a dictator who didn't really care about common Iranians anyways.
My country Bangladesh (used to be known as East Pakistan) was born out of a bloody struggle back in 1971. We had India and USSR on our side, and the USA, China and West Pakistan on the other. It was also a Cold War proxy battle if we look at it from an international POV.
And amid all the war, and success, guess what? - today's Bangladesh still maintain good relations with the USA, China and even today's Pakistan.
Even India and Pakistan came under sanctions after nuclear tests, and both appear to get along with the USA and the West in general. Indian-USA relations are pretty high at the moment.
Anyways, my point is that many countries may try to hurt others, but that don't mean taking that enmity too far. And I think that is the key mistake your leaders are doing.
Go against everything and everyone, but get little or nothing in return. Is that what you really want for your country? Is that what Iranians want? What do problems in Lebanon have to do with Iran? Does the Israeli-Palestinian conflict have EVERYTHING to do with Iran? Good God, are your leaders for real?