Marta Becket was possibly nuts, but inspirational. Revitalized the Amaragosa opera house, including amazing murals, in Death Valley Junction CA (population 4) and performed there for 4 decades in the middle of nowhere often to no audience. She died in 2017.
https://en.wikipedia.org/wiki/Marta_Becket
https://en.wikipedia.org/wiki/Marta_Becket
Being told you're delusional does not necessarily mean you're mental.