Who am I?
This is the biggest question of them all. You used to be a colonist sleeping in cryostasis. Now your consciousness is a part of the neural network of the Ship Computer.
But were you really a human before this? What does it mean to be human? A consciousness trapped in a shell made of meat and bones? You may as well be a transcended omnipotent god who has projected yourself into a simulation, deeply immersed in the role of whatever you are locked into at the time. You could never tell the difference.
There is no answer to this question. The only provable fact is that you exist.