Once logged in, click the "My Account" menu, then "Profile" to arrive at this page.
This page allows you to upload a photo and set your social media links.
Image Upload - Click the "Select" button on the left to upload an image file from your computer.
Social Login Settings - You can connect / disconnect social media accounts that allow you to login with one click. See screenshots below.
Save your details once done.
You can also delete your account via the link at the bottom of this page.