Stranger to myself

it' the year 2553
The Story-universe is just as confusing as this universe -okay maybe a bit more because it has been created in my head.

A girl wakes up in a sterilized room.
Not knowing where she is, how she got there and most importantly: who she is.
She has no memory about herself whatsoever. Even though she should have memories. She looks like she is in her 17s, by that time one has collected enough experiences and memories right`?

She starts to have blackouts and flashbacks but they seem to be from another life.

Her goal is to find out who that girl in her flashbacks is, who she herself is and why the universe is the way that it is.