Hello Amy! I think it is really inspiring that you want to change the world with your knowledge. I would like to know more about the prototypes you have done, here is a tip: try to keep it as simple as possible and see if this product is actually wanted or NGO's would buy it. The idea is powerful so focus and do it!
Thank you for inspiring me, next year I'm spending 2 months in India and I would love to come up with an idea like yours.