Before you go any further with your small business, gather your ideas and aspirations and make a business plan.
This plan is just a document stating the current status of your business, and what you want to accomplish.
Your plan can be as short as one page; see : Write Your Business Plan, shared by the Small Business Administration.
If you will need a loan to get your business started, the SBA also has How to Prepare a Loan Proposal.
Some people try to start a business without thinking out details. This process helps you organize your thoughts about your business venture.