In addition to the excellent recommendations in the comments, you'll want people in place to act a support system. Maybe this is a qualified mental health professional, or an addict group run by a qualified mental health professional.

I believe there is a sexual addiction and/porn addition group in just about every medium-sized city. If you can't find the latter, the former should be able to help direct you to appropriate channels.

You will face great challenges to success without a qualified mental health professional