Assalamualaikum
I was a addict of corn like all of you in this subreddit and I eventually found a exit way out of this.
Ill make it short, Pray all your 5 prayers, delete instagram and youtube, use this extension on ur chrome on laptop called "haram blur", join a online or real life islamic community (you could use a discord muslim community) through which you will be engaged in talks throughout your day when you are free, watch atleast 1 video of 1 hour of islamic content (it could be a motivational speech, learning islam, stories of our prophets, names of Allah) engage yourself in islamic content while totally blocking all ways of haram content, DO NOTT SCROLL FOR ALLAH'S SAKE, recite 1-2 pages of quran everyday and focus on your tajweed,read parts of quran with translation and relect on it and act upon it (try to corelate your life with the verses you see), make SINCERE DUA, always when your mouth is free say the adhkars, "يَا مُقَلِّبَ الْقُلُوبِ ثَبِّتْ قَلْبِي عَلَى دِينِكَ" O Turner of the hearts, make my heart firm upon Your religion, recite this throughout your day, and again the most important key here is to hold firm onto your firm know that allah (swt is watching you at all times, you may hide from your parents and do it but do NOT think that no one is watching you there is always a god above the 7 heavens always watching you, seek refuge in Allah from shaytan.
May Allah help all of the ummah who are struggling with this sin to overcome it and hold firm onto their faith.
(btw I am not a scholar or anything I am a laymen who used to struggle with this and maybe didnt even follow some of these but the stuff i mentioned is really helpful).
May allah forgive all of our sins
"A servant committed a sin and said: 'O Allah, forgive my sin.' Allah Blessed and Exalted said: 'My servant has committed a sin and realized that he has a Lord who forgives sins and takes to account for them.' Then he committed another sin and said: 'O Lord, forgive my sin.' Allah said: 'My servant has committed a sin and realized that he has a Lord who forgives sins and takes to account for them.' Then he committed another sin and said: 'O Lord, forgive my sin.' Allah said: 'My servant has committed a sin and realized that he has a Lord who forgives sins and takes to account for them. Do what you will, for I have forgiven you.'"