[bloak]

The "addiction" is perhaps partly a symptom of boredom or depression. Social and physical activities often help with that. Can you put some such activities into your timetable, for example by joining a sports club?

Perhaps try reading a paper book at bed time.

A separate device for news and social media might help, depending on your circumstances. ("In the old days, writers used to sit in front of a typewriter and stare out of the window. Nowadays, because of the marvels of convergent technology, the thing you type on and the window you stare out of are now the same thing." -- Douglas Adams)