New here!

Welcome man, I am in the same situation of yours, I am 20 and I have issues with this bad habit.
One thing you can do is trying to switch off all the electronics something like thirty minutes before going to sleep. And you can keep them in a different room from the one you are sleeping in.

 

same here, i'm also 20 and today is my first day of nofap

you could have all your electronical devices in another room, not in your bedroom when you feel the urge to watch porn
if you just feel the urge to masturbate than you could destract yourself with another activity, for example listening to classic music, this could also help you fall asleep

 

You can have a mindset like this: Ok, i have 90 bad hard days, where i have too fight with everything i got.
Or have 50+ years, where you are unmotivated, depressed, feel guilty and more...
So destroy every little thought that might lead too relapsing, and never drop your cover.

Good luck brother