I've Had It.

If you use Android, I found a very good app called "stay focus". The good thing about it you can control what you see in many different ways. If you can get a hold of it, tell me and ill explain more.
As for my computer I have another program called FREEDOM, what i did here Is I can only change the setting between 4and 5 a.m - if you want moreinfo tell me, but look it up.

Also I used to be on Covernanat Eyes which is good and strict - I think you might want this one but it does cost money.

But, look, the truth is taht every software has a bug and you could allways find a way around any restriction. The most important thing in my opinion (take in mind I am a sex addict 41 years old with no recored of significant recovery so far) it is having a AP, going to SAA meetings, or/and therapy.

Hope it made sense,
if you have questions Im happy to share from my personal experience,
You should be proud of yourself that you qre 18 and you awant to try and quit - this is amazing. I wish I was like you at your age. You are amazing
x

 

Agree 100% with whitelion. I wish I can go back to 18 and start my nofap journey at that point of my life. I'm now 35 and trying to undo more than 2 decades of neural conditioning

 

Hey dude try to decrease your screen time as much as possible, your phone shouldn't be stuck to your face the whole time I know you probably use it well over 5 hours a day, try to make it around 2, it really helps to clear your mind from those awful ads.