To complete your profile, there are several steps to follow
Where can you complete it? You have 2 options :
1st option :
➔ Click on the profile picture icone at the top right
➔ Click on Account settings
2nd option :
➔ Click on your dashboard
➔ Click on your Account tab on the menu More
Now you can edit your profile!
If you want to have a look at your profile page, click on the Profile tab