I posted this in another thread about the same topic, I hope it helps a little at least.
Being a male, and struggling with this addiction it has been difficult to overcome, and its still something I have to deal with; but its gotten better the closer I am to Jesus.
Once I started going to mass more, confession, and had a desire, a hunger for fullness in my life, I began to desire God. I desire to know God, to be with God, and most importantly, become like God by being Holy. To be Holy, one must simply make an effort to be like God in everything one does, which includes the rejection of sin.
“You have to be Holy in your position as you are, and I have to be Holy in the position that God has put me. So it is nothing extraordinary to be Holy. Holiness is not the luxury of the few. Holiness is a simple duty for you and for me. We have been created for that.” - Mother Teresa
What Teresa is saying is that we can all be Holy, and we have all been created to be Holy, it isn’t only Saints, it isn’t only a few. It is difficult for many to be Holy though, because they struggle with sin.
The one thing I’ve learned again and again, is that masturbation never leaves me satisfied. Sure, for a brief moment I reach a climax, but then it goes away and I’m back to square one, still longing for God. Masturbation is wrong because it simulates sex, and sex is reserved for marriage. Masturbation is healthy because sex is healthy spiritually and physically, but only when done by a married, loving couple. More importantly, masturbation is a mortal sin because it is lustful and inward. The purpose of sex is to manifest love and create life, and a person cannot do that on their own which is why it requires a partner, and is why masturbation is selfish.
You’ll never feel full, and end your thirst for wholeness/God until you stop sinful behavior, including masturbation. This goes to everyone, not just you. This is why St. Augustine said “You have made us for yourself, O Lord, and our heart is restless until it rests in you.”
Sinful behavior is the rejection of God, and sinful behavior only makes us more thirsty for God; it is like an elixir. Its as though engaging in sinful actions is like drinking ocean water while stranded in a raft. For a moment there is relief, but it will only have the stranded person thirsting for more.