There are many ways to attract customers. The most important thing to start with is providing a valuable service. Once you have cleaned up your service and business offerings enough so that they are perfect and desirable to people who need them, then you can begin your marketing plan.
It is important to sit down and create a marketing and business plan. You can hire someone to do this for you but you should be there to give input. Creating a business or marketing plan will make you accountable and give your business some direction. It is crucially important to do this right at the beginning.
You should also create a website. This should be down professionally, of course.