I don’t want to sound pessimistic, but it seems… that… your job, as the being that controls both your mind and your body, is:
Get the most out of the shit you are while you can.
I wouldn’t say a person’s initial disposition really matters. It is how much he/she has improved over the situation by means of effort that counts. As an exaggerated example, I think a toilet-cleaner who makes an effort towards clearing is better than a millionaire’s son that does nothing.
Or am I imposing my “truth” on you?