How to change password iPhoto

Question

I am new to Mac Book Pro so if you know the answer please remember K.I.S.S. as I don't know where to find all the drop down menus stuff like I did with Windows.
Here is my problem:
I have my password for this site and iCloud but I beieve I messed up my passowrd in iCloud. I can not send a photo from iPhoto as it does not recognize my password.
I have been unable to find out how to change my passowrd.
Please help.
Thanks.

Answer 1

I can not send a photo from iPhoto as it does not recognize my password.
Quit iPhoto if it's open.
Launch the Mac Mail app. The icon is a (blue postage stamp) in your Dock (bottom of your screen).
Click Mail from the menu bar far left corner on your screen then click Preferences from the drop down menu.
Select the Accounts tab then select the Account Information tab.
Make sure you are using the correct User name and password
Now select the General tab.
Click the pop up menu next to: Default email reader:
Make sure Mail.app is selected. If it isn't, click Select then navigate to the Applications folder, select Mail.
Relaunch iPhoto.
If you still have problems with the password, launch Keychain Access. It's in your /Applications/Utilities folder.
(Keychain Access stores all of your passwords)
Select Passwords on the left.
Type   mail   in the search field top right corner of the window
Right or control click your mail account then select the Attributes tab.
Click: Show Password
Make sure that password matches the one in Mail > Preferences - Accounts - Account Information.