To reset your password in the layer first go to your dashboard and click on your name in the top right corner.
On the next page you are taken to click on Password from the top bar.
On the next page input you current password, your new password and confirmation of that new password in the appropriate boxes. Then click Change Password.
N.B. Passwords must be between 8-16 characters and contain at least one special character (~!@#$%^&* only)