Click on your name in top right of the portal and go to Account. In your Account Settings, below your Profile information section, click on Change Password.
Your password will need to have
- One lowercase letter
- One uppercase letter
- One number
- One special character
- Eight characters minimum
If you forget your password, you can reset it via the sign in page: click "Forgot password?" and follow the instructions.
Make sure you have your mobile phone on you to access your authenticator app or receive the authentication codes via text.