Most of us are in the same boat. We want to do something. But dont know what and how. 1% succeed and become Baba Amte.
Also realize that any venture has to be financially viable. Even Baba Amte must have needed funds for the land, beds, medicines for the patients etc. Either have the resources to get grants or private charity or support from a NGO.
I sincrely hope you are in that 1%. I hope I am too!