Healing for Addiction and Negative Emotions

I've finally come to accept that I have a problem and it's not going to go away that fast.

My problem is that I am addicted to pornography and masturbation. I want to feel strong and in control of my mind and actions. However, I've been fighting this addiction only through repressing myself, but sooner or later, the urge creeps up and I go back into my old habits.

This has also resulted in simply feeling apathetic all the time, not having any emotion or desire to actively accomplish something. As a result, it's severely affected the way I do things.

Is there a way to get past this problem through a particular method of healing? I do believe I can overcome this, but doing on my own hasn't given me the results that I want.

Any advice, information is much appreciated.