Follow your most important SharePoint sites
You will have quick access to your most important SharePoint sites if you "follow" them.
Go to the front page of Mannaz SharePoint. https://mannaz.sharepoint.com/_layouts/15/sharepoint.aspx
Or click on SharePoint from http://portal.office.com
On the front page you can see the SharePoint site you often work in. Click on the small star to start following it.
The site will then be added to list in the left column.