Masturbation 16 y/o

Salam-Waleikum-Warahmatullahi-Wabarakatuhu, I am a 16 year old boy, born and raised Muslim, I don't know who to talk to about this thing. Alhamdulillah I have been doing everything to do fewer sins and to become a good person for a few months now. But I have a problem that has plagued me since I was 11-12 years old and that is a very serious problem in my opinion and it is a problem that I still do today, the problem is that I can't get away from pornography and masturbation and from thinking about haram things 😔, every time I do it I regret it but I only understand it after I have done a haram thing and then ask forgiveness from Allah (Subhana-Wa-Tahala) but after I crash again in this Shaytan trap and I'm afraid that Allah (Subhana-Wa-Thala) don't forgive me anymore. I don't know what to do to quit anymore, I'm fasting on Mondays and Thursdays like the Sunnah of the Prophet (Muhammad Sallelahi-Alehi-Wa-Sallam) not always but I'm trying every week, I try to pray more, I try to train / physical exercise to distract myself, I try to detach myself from the phone / computer but I can't stop 😫, I barely managed to do only one week without masturbation and pornography but then I did it again 😓. It is something that bothers me because I am doing zina (I look and listen) which is one of the most sinful things in Islam😣. What should I do, or would you have any advice to give me about it? 😥 Please anyone can answer me? Jazak Allahu Khairan,