You can follow the steps below to edit your profile
Sign in to your account using your registered mobile number.
Navigate to Settings & click on Edit Profile.
To update the Profile Picture, click on the profile icon, upload the file from your device and click on Save Changes.
To update the Username, enter the new username and click on Save Changes
Once you click on Save Changes, your username & profile picture will be updated.
Profile image size: The image should be 300 × 300 pixels, with a maximum file size of 100 MB.
Username limit: Your username can contain up to 30 characters.