An optimized Google My Business Page is crucial to your business' visibility; if you don't know how to set it up, you may need to add a Manager to Google My Business so someone else can help you.
Having a Google My Business Page is one of the most important things you can do to get your business into the search results. Once you have your Google My Business Page setup, it's important that you optimize it with all of the important information about your business, like the hours you're open, what kind of business category you are in (lawyer, dentist, retail, etc.), and a short description of your business. What a lot of people don't know, is that what you put in that short description is very important! Be sure to use keywords that let Google know what your business is all about, and what kind of products or services you offer that customers will be searching for.
If this is more than you want to deal with, you can always assign someone else as a manager of your Google My Business Page and let them handle it. In fact, it's just a good idea to have more than one person assigned as manager, in case access to the original email account is lost. But how, you ask? Start by going to the Google My Business login page, and click login in the upper right corner, and login using the email address you created the page with. If you haven't created a page yet, you can do that here, too, by clicking on the Start Here button. Then, click on Manage Location below the map of your business, finally, follow the instructions in this short video.