Click on your photo on the menu and select Change Password. You will need to enter the old password, a new password and confirm it by entering it twice. If you don't know your old password, log out and go to the Login page where you'll find a button Forgot your password?. This will send you a link to reset your password. You need to be logged out to complete this process. If you try when logged in, when you click on the Reset link in your email, you will be taken directly to the Homes page as you're already logged in.