Apple I cloud

iCloud uses your Apple ID and password. If you only have one Apple ID, it would be the same ID and password as you used to log into this forum. If you have another and have forgotten the password, see the following: If you forgot your Apple ID password - Apple Support

This is primarily a user-to-user support forum; other Apple users like you. Click on the following and see instructions there: If you forgot your Apple ID password - Apple Support