Unlock password i put a password on and forgot what it is can you help unlock it

What kind of phone it is? You can perform hard reset on you phone by using the key combinations on your phone. Simply google the hard reset option for your phone model.

You will have to reset it factory settings
Performing factory data reset ( master reset or hard reset ) Sony Xperia J ST26i/ST26a via Settings menu:
To perform a factory data reset
From your Home screen, tap Applications
tap Settings
tap Backup & reset
tap Factory data reset
tap Reset phone.
tap Erase everything.