Q: i can't do ant thinks my user is lock

Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.

Any change?

Reset Password 10.7, 10.8, 10.9...

http://reviews.cnet.com/8301-13727_7-20087723-263/how-to-run-the-password-reset- utility-in-os-x-10.7-lion/

Then Reset your Keychain...

http://support.apple.com/kb/TS1544