Or at all.
That, and addictions are hard to break. The fundamental starting point is to believe that the addiction is wrong (sin). Be it alcoholism, drugs, pornography, homosexuality, philandering, etc. If the person does not believe the addiction is wrong, he will never leave it. Unfortunately today's culture and media provides nothing but positive feedback about the sin of homosexuality (turning a blind eye to the diseases, early death, and descent into further depravity where this sin eventually leads). It thus becomes very difficult for someone to break the chains while he has the world shouting at him that all is well as he marches towards the abyss.