Inside your account, go to the downward arrow next to the profile picture you want to change and select "Settings".
After clicking "Settings," the following screen will open, where you can select your profile picture, a banner, and also edit your biography. Afterward, click "Save."
Also, it is important that you go to the personal verification section. If you do not perform the personal verification, you will not be able to prove your identity in order to monetize on the platform.
