This is hard core approach. Sounds tempting.Thats a change of life style.
I see myself in your story, but didnt go so far.
I tried to dump smart phone twice. Made it to a half a year each time.
Now I am again with two smart phones, ipad and laptop.
Trying to tame it for years.
Locked in that kind of life .. of information and communication.
As majority of people today.
Wishing you good life without computers/ internet.