So, let's name our main character Josh. Josh is a close friend of mine in highschool, we're both 14. Problem is Josh is very addicted to his phone. At first, Josh would use his phone after class a lot (that makes sense, it's spare time); but then Josh starts to use his phone in class (kinda bad but not really), now he only uses his phone in class. Every period, if you were to see him, he would be on his phone on Snapchat chatting up girls his age. But at this point, it has gotten very unhealthy.
So to go into detail:
For science, English, maths and social studies. Josh is always (from me and everyone else in our class) using Snapchat talking to people. These are the same subjects he is not strong at and sometimes our maths teacher would worry for Josh's grades
Josh is too addicted to chasing girls, focusing more on girls instead of school. This is short-term satisfaction, I told him. Thing is, he is not chasing girls for the chance of finding love. It is more of a social status thing. For example, he goes around bragging about having sex and recently, sending footage of him getting head. (huge controversy, leading to a lot of people leaving group chat because they were disgusted). BTW the reason for the use of his phone in class is to talk to these girls.
Recently, (like 20 mins ago) I tried talking to Josh about his phone addiction in class and suggesting for him to get rid of Snapchat to be able to focus in class. His response is that it is fine and that he is doing well in his subjects. I am his closest friend, so yes, I know his grades, and as said before, he's not that strong in some subjects.
My classmates and other friends are aware of Josh's addiction and several times, Josh has become more violent as well. I have witnessed him slamming his "close friend" into a locker because he dropped his phone.
I think this has gotten out of hand.
My question is: How can I help Josh overcome his phone addiction?