There's no single answer to this question, as it depends on the type of business you want to start, your experience and business acumen, and a range of other factors.
That said, there are some general steps you can take to get started:
First, you need to come up with a business idea. What are you passionate about? What skills do you have? What needs does your community have that you could fill?
Once you have an idea, you need to start doing research. What are the business regulations in your area? What will your start-up costs be? Who is your competition?
Once you have a solid plan, it's time to start making things happen. This includes everything from securing funding to setting up your business location to acquiring any necessary licenses and permits.
Finally, you need to start promoting your business. This could involve creating a website, marketing your business on social media, or advertising in your local community.
If you're unsure about where to start, there are plenty of resources available to help you, including books, websites, and even business courses. The most important thing is to just take that first step.