I keep trying to do this, I have a non-smartphone that I use for calls (I want a landline but can't since I'm in student accommodation at uni) but the thing that keeps dragging me back to getting my iPhone out again is my friends get annoyed that I can't respond to them quickly... I haven't used social media like Facebook, Instagram etc. in a year so that's not a problem, it's things like iMessage. A small example is my mum sends me a photo of my dogs every morning and little bitstrips things but when I turned iMessage off she was sad that she couldn't send them. I know I'm doing this for me and other people shouldn't stop me but, it kind of does.