Decide what kind of business you want to start. If you want some extra money, maybe you should start a side hustle. If you want more freedom, maybe it's time to leave your 9-to-5 job and start something new. Once you've decided all this, you should follow these 3 steps:
Evaluate every aspect of your business and do market research
What services will your business offer? Is anyone else already doing what you want to start doing? If not, there maybe a good reason why.
Finance your business
Fund your startup yourself, pitch to your friends and family, request a small-business grant, apply to angel investor groups, start a crowdfunding campaign online or seek a bank loan or line of credit.
Develop your product or service
Get all of the legal aspects out of the way. And now that you have the resources, you can develop the actual business.