I'd say: take it very serious. VERY serious.
Remove your options. Get rid of internet at home (do you REALLY need it?)
Replace your phone with one that can only text and call
Find support with family/friends, let them put passwords on all their electronic devices (this is what I did and it worked)
This way you greatly limit your options
You should ALWAYS aim for cold turkey
Avoid all kinds of sexual stimulation
Learn to get comfortable by yourself, go for a walk, etc
Find fullfilling things to do with your time, porn gives LOTS of dopamine so you will create a void if you stop watching, fill that void with fun stuff (could be writing, making music, excercising, join a sports club, chilling with friends, reading, running, anything). This also reduces cravings
Good luck it's not too late to change