NoFap is one of the biggest search clusters around quitting. The useful parts are taking the habit seriously, talking to other people, and having a defined “I’m not doing that tonight.” The less useful parts are shame, miracle claims, and treating one relapse as a total reboot to zero identity.
If a 90-day challenge keeps you honest, use it. If it makes you binge after a slip, drop the mythology and keep the tools: friction, urge work, a streak you can restart without humiliation.