Logging in and resetting your user name

I've tried to look into problems associated with logging into the site and from what I can work out this is all you need to do. At the top of the page is an icon that looks like a person inside a blue circle, click on that and choose log in. You can then choose to log in with google, facebook or email details. If you are using a phone the icon is hidden inside an icon that looks like three black lines, along with the site links

Once you are logged in go back to the same icon (person inside the blue circle) and choose profile, from there you can edit your profile and change your user name to a name of your choice if you want to.