I don’t have a magic formula for you, but I can tell you the ‘secret’ of my success: I built my business by combining my skills, passions and unique ideas into a business that only I could create. Read more about that here.
Once you have your great idea, the most important thing is to consistently produce high quality work, and to keep going – unless you have a lucky break, it takes time to grow a good idea into a profitable business. Good luck!