Cutting Computer in Evening I have recently managed to restrict my eating period to about 8h per day, which is supposed to help circadian rhythm. 

Yet, to further promote sleep and circadian rhythm, I should also cut out blue light from a computer a few hours before bed (and go to bed at the same time each day). Since I get bored when I cut the computer at this hour, I always revert to using the computer, delaying bedtime in the process. 

What would Buddhism suggest as solution towards such a computer use? In the evening, I'm unable to find activities interesting enough, I always revert to using the computer. 

Would avoiding the computer at other times decrease my attachment to it overall? What might help?
When using a computer you get a lot of input or information to process. This leads to more vitakka and vicara hence dispersion of the mind. It is best to limit this and try to be more mindful when using computer and phones.