Businesses don't just happen, you have to work hard and advertise everywhere you can. I have been mobile for two and a half years now and I'm only just getting to the stage of being solidly booked. You need to get your name out there as much as possible, let people know what you do.
If you're serious and passionate about your work, you'll do well. If you sit on your backside and don't do anything constructive...you'll fail. Things won't just fall into your lap, you have to go out there and get it.
Good luck x