Hi, my name is ***** ***** certified Samsung professional with over 10 years experience. I will be glad to assist you with this.
I am sorry to hear that happened. If you have a google account connected to the phone you can use android device manager to reset the password>>
Then sign in with your google account and password.
Then choose lock, then google will ask you to create a new password.
Then you can use that password ***** unlock your screen on the Samsung.
If you can not do the above you will have to do a factory restore on the phone> Please follow these steps>
Power off the phone>
Then press and hold Volume up, Home and Power buttons until the Samsung logo appears on the screen.
Scroll to wipe data/factory reset by pressing the Volume down button.
Press the Power button. Scroll to Yes -- delete all user data by pressing the Volume down button. Press the Power button.
The phone will now wipe all contents. Press the Power button.
The phone will now reboot to the initial setup screen.
Sorry had to go out now have done a factory reinstall so all well thank you for your assistance