I wish I had what I needed,
to be on my own
cause I feel so defeated
and I'm feeling alone

All she ever wanted was to live. To live normally, to not be plagued by the fear of death. When she got her results back she was overjoyed but really had no idea where to go, or what to do.

And it all seems so helpless,
and I have no plans
I'm a plane in the sunset
with nowhere to land

She's spent so much time with her door that she'd never really made any life plans. No college options or career choices. Nothing..

And all I see
it could never make me happy
and all my sand castles
spend their time collapsing

It's not as if she wanted anything materialistically. Nina helped her out with whatever she needed. She did really want thing though, love.

Let me know that you hear me
let me know your touch
let me know that you love me
and let that be enough

Bright Abbott was the object of her affection. She loved him and her only wish was that he would someday return those feelings.

Let me know that you hear me
let me know your touch
let me know that you love me
and let that be enough

It was a simple wish for love and companionship. Nothing else

let that be enough