Hi applelinnan,
Thanks for visiting Apple Support Communities.
You can use the steps below to reset your iCloud password:
Change your iCloud (Apple ID) password
- Go to the My Apple ID website (appleid.apple.com) and follow the instructions to reset your Apple ID password.For more information, see the Apple Support article Apple ID: Changing your password.
- After changing your iCloud password, make sure you update it on all your devices and in any email apps you use to get your iCloud email.
iCloud: Change your iCloud password
http://support.apple.com/kb/PH2617
All the best,
Jeremy