Choosing between your own name and a fictitious name can be a difficult decision. There are a couple rules of thumb. If you're reasonably well-known and well-respected in your community or in your business field, use your own name. It can be a great marketing tool.
However, there's a risk with using your own name. If your business fails or gets into financial or legal trouble, it'll have your name on it. If you try to start another business, people may associate your name with the earlier troubles.