If you think your password doesn’t need Tom Cruise and a Mission Impossible movie to get cracked, it’s probably not strong enough. Fortunately you can change it anytime by clicking on the gear icon and scroll down to ‘Change password’. First you need to enter your current one, then feel free to change it.
Happened to us all, and will keep happening until eternity. You can ask for a new password on the login page, then you’ll get an email and can enter the new one.
Just a note: the email will be sent to the email address on your profile, so make sure it is entered correctly.