The Ecumenical Humanitarian Organisation (EHO) provides various training courses to support people who want to set up their own business.
There is a training course that teaches you how to write a business plan. The business plan explains your business idea. You list how much money you need and what you will use it for.
Your business plan can be used to apply to the EHO for financial support.
You will find further details on the website. You do not have to pay for these services.