Not everyone would envision your vision with you.
You keep working towards your goal.
People believe in you only when you prove yourself or are successful. Until then, people would keep doubting you, your vision and your capabilities.
Even after being successful, there would still be people who will constantly doubt you. Even successful personalities like Narendra Modi, Barack Obama, Donald Trump, Bill Gates, Mukesh Ambani, etc are constantly criticised & doubted.
It’s the job of mod to destroy. It’s the responsibility of the leaders to believe in their vision & build the future.