11 Days of abstinence, when do NoFap benefits start to appear?

I'm a 28 years old guy, student of computer science, and i've never had a girl in this 28 years. And i think this is cause of porn watching. I've started lots of times the 90 days challenge but i've fallen every time. Now, maybe having the goal to conquer my best friend (even if she's engaged already), i've arrived to 11 days of NoFap. Any advices not to relapse, and when all benefits of nofap will appear in me?