I'm afraid that you won't find a Notifications section in your account since that is only available for professional accounts. However you will find a section in your account called Email Preferences where you can manage all of your email alerts and delete any you no longer wish to receive. You can navigate to that section under your profile photo in the upper right corner of the page, or you can just click on the link below for easy access.
Let us know if you need any additional assistance.
On the upper right-hand corner of most pages will be your picture (if you had one) along with your name. Next to that is a little down arrow. Click on that. Then click on "Notifications." Unclick the notifications you no longer wish to receive.
Hope that helps.