Beating addiction requires changing your life.
Nutrients alone are a drop in the ocean. They aren't going to do anything.
Us addicts love the idea of quick fixes. After all, that's what porn is - a quick fix. But real change takes slow, steady habits and planning over a long time. There are no quick fixes. This is just another way your addict mind wants to avoid the pain and hardship of what it takes to get a real genuine life. There's no substitute for reality.
Look on the bright side, you've saved $50.
Put that $50 towards some self-improvement books and actually read them and internalise some of the principles. That will be the best $50 you've ever spent.
Keep going man. You're doing good just coming on here and asking these things. The other 99% of porn addicts aren't. You can and will get to a better place. Keep on loving.
Peace.