Automatically Connect VPN with Password at Startup

Running OS 10.14.

I have done some searching and I am trying to figure out how to connect saved VPN network service on startup. The result of my searches has left me confused and admitting I don’t know what I am doing.

The issues is simple: i want a script to run at start up that will connect to VPN service that has been saved in my network prefs. And auto input the password on prompt.

Sounds simple enough and there are resources on the net and couple threads in this forum but I am lost.

Any help would be greatly appreciated. Thank you in advance Rick