Does anyone know how to start a business? I know what business I want to start but I just don't know where and don't know how to start.?

Check the excellence-success website.

Check the your harmonic resonance website.

There used to be a book called How to Create Fund and Start your own business. Check the library for it.

Once you find these sources of information, read them.

Start with a simple business plan and financial projections to understand whether the business is viable.

Ask those in that business already, you will be surprised bow helpful people are. Most feel good and important when you ask them for advice.