Doesn't saying that Jesus is your saviour mean that he is saving your life, offering you everlasting life? In what way does he always look after you? Do you never get sick, never stub you toe, don't have car accidents, and never have a broken heart. Will you avoid cancer, and die peacefully at an old age? From what I can tell, the good and bad aspects of life affect Christians the same way as they affect atheists.
Saving my life and eternity - yes, a part of it. Another big part of it for me is I have someone to turn to when no one can help, a comforter when I am in distress and a source of strength etc etc etc etc. Being a Christian doesn't make me from anything bad things that happen to anyone else, doesn't make me a super human or sth like that. But when all those happen to me, I have an alternative to other human and myself and any other things else for help/consolation/encouragement/strength.
You were saying that the promise of afterlife is the ONLY ..... , that was what I beg to differ.