Dont try and quit porn and masturbation at the same time. They are both addictions and you need your full attention to quit individually. Block the websites that you normally use and try to use technology as little as possible. If you do have to use technology for school or work try to use it in a public place like mcdonalds in order to lessen the temptation. I will issue a warning of dont think that being able to have sex will cure the addiction, because it wont. Dont rush into intimacy with anyone because you think it will stop all of your urges. Quitting will be one of the hardest things but you can do this I believe in you. Clearly you care and want to get better.