First, you need to estimate how much money you will need to run the project. Then think carefully about how to recommend your project so that people will accept it and like it.
Not too many. It is not difficult to borrow it from relatives and friends.
It is more difficult to find an investment partner.
A lot. It is easy to find a bank or risk management company. It is very difficult to invest. Banks and venture capital will assess the risks of your project before considering injecting funds. But once venture capital gets involved, your patent may not belong to you alone