He's not going to last. You can't go from doing ridiculous shit like edging 4+ hours twice a week, to just up and quitting porn.
Notice he hasn't said anything about what he's doing to distract his mind (no projects). He's just going to "give up fapping", it doesn't work like that, he's going to relapse hard.
Literally every form of entertainment these days is related to sex.
I don't do NoFap, I just randomly stop fapping for 2 to 3 weeks every now and then when I become absorbed in a work project (it rarely happens).
But you know what always gets me back fapping:
1. Watching a movie and a sex scene happens
2. Watching an anime and something ecchi happens
3. Browsing the internet and you see a random provocative ad
4. Literally just having random sex thoughts pop into your head when you are doing non sexual shit like making a sandwich
So I call BS that some guy who has been edging his dopamine receptors into oblivion is going to just randomly be able to quit.
It's easy to feel like that the first few days of not fapping, but even with something to distract your mind, something will always pop up.
You can't fight biology.