i read a book called dopamine nation and it was eye opening on how modern consumer products are designed to hijack your natural reward system. one of the products mentioned was ksafe which is a box with a timed lock.
first time i used it with my phone, I locked it from 8 PM - 7 AM.
it was eye opening how anxious and uncomfortable i felt not having my phone to browse whenever i felt bored or as i going to sleep.