You can absolutely make money from home as a Virtual Assistant. Not only that you can make more money than you think. Many women (and men) are earning CEO level pay as Virtual Assistants.
Make sure you think of the following:
1. What are your skills?
2. Who are your customers?
3. What is your Niche?
4. Do you have the tools, technology, equipment, space?
5. Create a website (someone suggested a blog, but I suggest a blog and a full site, you can use wordpress.org to create a great site really inexpensively, and the learning curve is low.
6. Check the laws in your area re: business licenses
7. Be your own best first client by getting your business in order, then..
8. Market 24/7 - you can work locally, and across the country and literally the world.