It's possible to reset your password used for Pico in two ways.
Already Logged in
While logged in to your Pico account on any site, you can manage your password from the edit profile screen.
Click on the community logo in either the bottom or top -right corner of your screen. If you do not see your account information, follow the prompt to log in.
Click 'Manage Account' and then 'Change password'
Enter a new password on the pop-up that loads.
Request Password Link
When trying to log in to your Pico account, if you cannot remember your password, there will be a link to reset your password, which will send a magic link to your email. This will let you log in and reset your password.