To get your feet wet, volunteer your services. Some work beats no work, and work tends to beget more work. There's nothing worse for your morale than having your skills lie dormant. Valued volunteer efforts can turn into paying efforts. It helps get the word out about your business.
Many volunteers find their experience leads to paying contracts or orders.
At the very least, volunteer efforts can be a source of experience, contacts, and references that you can leverage into their business you might not otherwise know about or be able to get. If things are not working out as planned, be flexible enough to consider other alternatives of breaking into the market. One way would be to work as temporary employee in a field related to what you'll be doing in your business. Working for a temporary agency can provide valuable experience and excellent contacts. At the same time, it provides a flexible source of immediate income while you're building your business.