18 year old- 4 year porn/masturbation addiction

I've tried a lot to stop. The maximum I've gone without porn/ masturbation was 20 days. It was the best I had felt in a long time. I keep slipping again and again. I'm a virgin, I don't ever know , I probably have porn induced ED by now. Continuous masturbation over 4 years, multiple times a day. Its killing me. I have other problems, but none of them are as bad as this one. I continuously feel the urge to give in. I just realized how much time has passed and I've been trying for more than a year and a half to stop(4 years since I started). Please help me. I live in Toronto. I'm planning to go for confession, hope that it will ease some of the burden. I haven't told anyone about it, I can't afford to hurt my family because of my selfish ways. I just hope that by the time I'm 19, I'll be able to get rid of this addiction at least for 90 days. I used to be an athletic person with a lot of stamina. Now, I'm panting within a couple of minutes of jogging. Also, as soon as I masturbate I get pimples on my face (acne). Its ridiculous. My best bet right now is to reinstall K9 Web Protection on my laptop, and on my phone. I want to enjoy my life with real human beings, and I'm going to seize every opportunity that allows me to do so. Please help me out, thanks!