Your parents don't know the moment you were conceived. They know they had sex. No one is with you at all times during your life but you. Even if you die in a stadium full of 50,000 people you will be the only one headed wherever one goes when they die.
You meet people. You stuck with you. You're born alone and you die alone. It's rather simple. You are responsible for you. No one else is to blame and no one else can answer for you.