What works for me is removing the antecedent completely by charging my phone in another room at night.
Now the battle is easier: Decide once a day to put it there, and track how many days you succeed.
For me that's a lot easier than having it in my pocket, where the Internet is always a couple lazy taps away. Now I at least have to walk to it if I want it, and that often "breaks the spell."
I finish work and chores hours earlier when my phone is charging in another room, without consciously doing anything else differently.
It really makes me want a 1980s-style cellphone with no screen and big physical buttons.