Questions about masturbating and my religion. (Im mormon)?

Well, Im a Latter Day Saint (mormon) and for the past 3 almost 4 years I guess ive become addicted to masturbating and porn... Its not something Im proud of Im actually really ashamed of it. Ive been able to stop for maybe a month long period 3 times maybe. But I keep faltering and I hate it. Ive prayed for forgiveness and help but I always fail again and fall back into my old habits. I hate it so much. I want to be good and do what is right and not sin like this. I dont know what else to do. Am I going to outer darkness? I know I will never be able to serve a mission or go to the temple. Im almost 17 and a senior in high school and ive been masturbating since a few weeks before I was a freshmen. Im screwed and I know it. I havent talked to my bishop cause im so ashamed of what Ive done and I dont want him to look down on me because other than this habit I think im a pretty good person. I just dont know. Someone please help me and give me some advise on what to do. Will God ever forgive me? Will he ever love me again? I miss feeling the spirit and feeling worthy of the many blessings he gives me. I wish I could just go back in time and punch myself for ever starting to commit this sin but I cant. What can I do to change? I want to be worthy to hold my priesthood and feel the spirit but I just dont know... Please help?