Help! I'm married, have a terrible porn addiction, and just did something really stupid...?

Don't tell your husband all the details. He doesn't need to know about it all. It would just hurt him. But do get the help you need to stop. Go talk to your minister and see if he/she knows of any counseling they would suggest, also, call your internet company and turn off your internet. That will stop the source. I'm not sure you have the will power to prevent going to porn when it is so so easy.