Have you been to Iran? They are quite comfortable living on dried fruits and water. Let the USA try and live without oil. 30 years of sanctions have not worked against Iran, they never worked against Cuba or South Africa. Open your eyes and face reality. Sanctions against Iran will be busted through Afghanistan and Pakistan as they are being done right now.
Rohani: Nuclear deal achieves Iran's goals (AP)
from the article: Iran official: U.S. cannot stop us from cutting off world oil supply