At the top right corner of your profile cover you can see a "controls" menu (on phone it's the three dots at the top right). If you click it you have the options to change your status, set a nickname (edit) in case you don't want a dull lowercase name with no gaps like marcopolo and you can also change your cover.
Note that statuses here work differently from before. All you can do is set a status without anyone being able to comment on it. Whenever you set a new status the old one will be lost.