What's with that idea that compulsions aren't real? They are just as real and difficult to drop as substance-based addictions, for a rather simple reason:
The physical addiction is only a compounding factor, not the core difficulty in a "classic" addiction.
What really makes people always come back, no matter what, is the psychological addiction, not the physical one. Which is also why phones can be just as difficult to stop as gambling compulsions or drug addictions.