How to forgive myself for doing this?

I feel very angry at myself for looking at porn. I read somewhere that porn dishonors and misuses women. I believe women are human beings equal to men. Now I feel angry to the point of violence for buying into that. It would be nice to forgive myself without buying into the whole "God shall forgive you" bullshit. I been thinking about talking a doctor but if anyone has can give some advice, I would be very thankful.