There are two ways to reset your password.
If you are not logged in, click the 'Forgot password' option on the login screen
If you are still logged in into your account, you can go to Settings ⚙️ - EEVEE account - Reset password.
In both cases an email will be sent to the registered email address which will contain a link to change your password.
Did not receive an email? You've probably heard this before: check your spam folder! 😉 Or the email address is not known to us.