Alright, I'll give this a shot, too.
Quickie backstory: Shin grew up in a tiny and insular community in an asteroid in Luminaire. The end.
Her main goal is to safeguard her clade - her family - who suffer from the same sorts of small-genepool problems that many very tiny and insular communities suffer from. This has largely been accomplished, at least for the time being, at some personal and ethical cost to her.
That said, she's discovered that it's not really possible to go home again. Her clade will survive, she has done her part in making sure of that, but they will survive without her. So her other large goal at this point is to find some reason to get up in the morning and feel passionate about more than just "what shall I feed arf for breakfast"?