NoFap + Intermittent fasting+ Workout+ Studying

Start pathetically easy and work your way up very slow (if you're not moving slow, you're not moving at all);
help other people --- to go far, go with the group. You don't have to always be around them* but if you feel down, helping other people always helps; the opposite of addiction isn't self-control: it's connection;
read about what you're trying to overcome, because if really understand an issue, you can solve it.

Yes, I'm intermittent fasting at the moment, though I'm trying to push back the time of the day I break my fast gradually: I eat one meal at noon, and the other some time in the evening. Is there any fasting group on these forums, and if not, can someone create one? It would be immensely helpful to this community if there's a similar milieu to cope with the challenge of fasting, which yields a ridiculous range of benefits, akin to maditation and exercise.

I think that the only way to overcome temptation is to give in to it, because there is no way you can fight your hippocampus. Treat yourself a less harmful reward to alter the (cue-response-reward) cycle (instead of rewarding yourself with masturbating, maybe watch YouTube videos for a set amount of time). And most of the time, you will still have the urge, for hours too, and even fail and give in, but perhaps it would help to keep in mind that happiness isn't worth aiming for in life, and that if you make your decisions taking the perspective of death, then maybe it'd all be simpler, if not easier?
Either way, have faith in your god** and , find something meaningfully engaging (developing your skills or knowledge, or helping other people) and know that humans naturally tend to sin and lapse: it's a miracle everyone is successful, so to speak, but that's life---a game that yields billions of winners, and the only game that matters.

Footnote:
*indeed, solitude, which is all too eschewed in our uber-connected world, is vitally important to the development of the self, the realization of one's potentials, and the undertaking of any kind of serious work. People incapable of being alone are incapable of realizing who or what they are.
**The Modern person doesn't see god because he doesn't look low enough; he lacks humility. But even a complete atheist stands on the next-to-last upper step to the most complete faith (he may or may not take that step), which is why total atheism is more respectable than worldly indifference: the indifferent one has no faith, apart from a bad fear, and in endless suffering.