How do I motivate myself to start my own business? I’m in a rut?

I have the idea and I've printed business cards, I have a domain name and I'm working on a website, and I know what I have to do, but I'm stuck.

I feel nervous to start making phone calls and doing the marketing! I need some advice and motivation.

I'm going to do a home staging business (decorating homes to sell faster and for more money - like the TV show "Sell tThis House") - so I have to start calling real estate agents, and putting ads on craig's list.

I think I'm afraid to actually do this. Help?

Sell By Owner