start with tone down the rhetoric i.e. death to America and death to Israel. Moderate, pivot to business and development. Nothing works as well as opportunity for global investors to generate ROI and when US investors have their money in Iran it's likely to influence US policy more than missiles and drones. Iran has leverage in natural resources, young educated work force and a large population. I think Iranians at their core are business people probably from centuries of being at the hub of global trade. Look at China in the 70's and look at them now. They are laser focused on development and once they achieved sufficient traction they invested in defense. Not that China is perfect but at least they focused on themselves and prioritized their own nation.
Iran is falling behind in the transition to new energy. We are not far from a future where oil and gas become less important and consequently generate less revenue. Saudi is preparing for that future and Iran is squandering her natural wealth on side quests beyond her borders instead of investing in herself.