This was a strange question. I have added to humanity by just being on this earth.
But my contribution would be to be a human, not just in form but by practicing basic human values of equality, love, care, compassion and above all kindness.
As I have mentioned before, it is our responsibility to leave the world a better place than we arrived in. So I want to ensure that I continue to work towards that and while not everything is in my control, I will work towards what is in my control.
Just being human is enough!