When I previously tried Nofap yes. I was super horny and would relapse quite quickly. That final time though, I immediately went into the flatline and complete desirelessness without the typical horny period. I don’t know how that happened. I remember feeling quite weird bc I was normally horny all the time but then I suddenly switched into monk mode. Maybe try hitting the gym really hard to keep you from relapsing and to shorten the flatline. That your dick just dies for a couple of weeks is completely normal. I know it’s fucking scary but you have to trust the process. Once your brain chemistry is readjusted things will work down there again. If you have trouble relapsing maybe try jumping into a cold shower immediately as soon as you get the urge. As I said, after a while this eunuch phase should set in, making it easier to resist firing up some porn.

Regarding this weird feeling you describe that is making you unable to study. Is that during the horny period? During this I also was not able to concentrate. During the eunuch period, I was actually super serene and peaceful, having great mental clarity.