Since you are entering a very competitive industry, albeit you're just at home, it will be difficult if you don't have your own website. You would have to market your products and services so getting your own site should be a top priority.
The next important thing is to find out who your target market is. You should know who to reach and what kind of customers you would cater to. Finding the right prospect is important because it would lead to the growth and success of your business.
The internet is a very powerful tool and you have to take advantage of it. Your resources are at the tip of your fingertips and it would be an awful waste of your idea if you would not check it out from time to time. Arm yourself with the knowledge of latest trends and offerings to optimize your business. You wouldn't want your customers to know that you're floundering in that department.