I haven’t found a better anthem for BPD then this song Mirrorball by Taylor Swift 

"mirrorball"

I want you to know
I'm a mirrorball
I'll show you every version of yourself tonight
I'll get you out on the floor
Shimmering beautiful
And when I break it's in a million pieces

Hush
When no one is around, my dear
You'll find me on my tallest tiptoes
Spinning in my highest heels, love
Shining just for you
Hush
I know they said the end is near
But I'm still on my tallest tiptoes
Spinning in my highest heels, love
Shining just for you

I want you to know
I'm a mirrorball
I can change everything about me to fit in
You are not like the regulars
The masquerade revelers
Drunk as they watch my shattered edges glisten

Hush
When no one is around, my dear
You'll find me on my tallest tiptoes
Spinning in my highest heels, love
Shining just for you
Hush
I know they said the end is near
But I'm still on my tallest tiptoes
Spinning in my highest heels, love
Shining just for you

And they called off the circus
Burned the disco down
When they sent home the horses
And the rodeo clowns
I'm still on that tightrope
I'm still trying everything to get you laughing at me
I'm still a believer but I don't know why
I've never been a natural
All I do is try, try, try
I'm still on that trapeze
I'm still trying everything
To keep you looking at me

Because I'm a mirrorball
I'm a mirrorball
I'll show you every version of yourself
Tonight