The article linked below mentions 4 things successful business owners do right. They are start strong, focus on finding new customers, put cash back into the business and work hard.
You need to be generating new leads all the time. Digital marketing can help since the Internet is where you potential customers are spending most of their time now. Just think about how times you are on the Internet using your smartphone.
For more information, check out this article https://www.theselfemployed.com/start_ups/4-things-that-can-make-or-break-a-small-business/