Online marketing should not be alone
While online marketing is great, if you've always used traditional methods, you shouldn't give up on traditional methods. Newspaper ads, business cards, and networking events continue to serve their purpose. When you combine traditional marketing with online techniques, people can find you and communicate with you in the way that suits them best, and you increase your authority by making your brand visible in as many places as possible.
Online marketing is not a quick fix and you shouldn't consider it a wonderful way to save your brand overnight. As with anything, it can take time, effort, and patience to achieve the results you want, but don't give up. Listen to the feedback, monitor what works and what doesn't, and remember that online marketing should bring you additional leads, higher sales, and hopefully higher profits if you consistently use great techniques.