Go for it. My suggestion would be to call city hall and ask them if you are within their city and you want to open your homes doors to start a business of braiding hair. How can you make it so it s legal in every way. City hall knows and since you didn t state your city, I can t tell you the answer.
You need to get a federal EIN, and a state sales tax permit. There may also be other industry specific licenses you need. Check your state laws for specific permits. It s also a good idea for tax and liability reasons to incorporate your business. An LLC is the easiest way to do this. A sole proprietorship creates some major liability and you end up paying more taxes than through a self owned corporation. There are a number of online businesses that can help you set this up. You may want to consult a local CPA who can explain the specific tax benefits.