Above all, LOVE. "For Love fulfills the requirements of the law. 'Do not murder,' 'do not commit adultery,' (every law!) is summed up in this one royal law (law of the Messianic King): 'Love your neighbor as yourself.'" All we need is Love.
Plus, we have to remember that God knows what we endure. He's caring enough & big enough to handle it when we ask why. He enourages us to wrestle with Him thru the "whys" of life. That's what His Word is for as we struggle thru "the plan" He has for us.