Awww... having a bad day do you need a hug?... on or off line things matter for example if nothing matters you would not paid your electricity bill it will be shut off... smile it makes other people happy....????
That's a bleak outlook on life... at some point in your life someone cared for you... if nothing matters then who feed you when you were a baby... clothed you... etc. If that's your philosophy your life won't have meaning