I was looking at songs and found this wonderful one by Cloudblitz Va. Her Pinkie voice is amazing btw ;)
Original video: https://www.youtube.com/watch?v=ds3hC...
Cloudblitz channel: https://www.youtube.com/channel/UCke5...

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Lyrics:
I was lost
Blinded by all my past
Angry, upset
Yet I received a second chance
How's that?
I thought friendship was gone
But I was shown
I'm not alone in this battle
Can I change?

All I had was the pain
and revengeance
I did not see the way
known as friendship
Throughout all these years
Thought it as something to fear

Travel back
It can change all the facts
Things that I knew
suddenly flew
Into despair, they're gone
Selfishness overtook
She had to pay
For causing more pain in my torn life
Will they forgive?

All I had was the pain
and revengeance
I did not see the way
known as friendship
Throughout all these years
Thought it as something to fear

Then you came and showed me a different door
Losing one friend doesn't mean there's not more
You helped me to see
You helped me become redeemed

Can I do this?
I can do it.

(Young Starlight Glimmer)
All I had was the pain
and revengeance
I did not see the way
known as friendship
Throughout all these years
Thought it as something to fear

Then you came and showed me a different door
Losing one friend doesn't mean there's not more
You helped me to see

(Older Starlight Glimmer)
You helped me become redeemedLyrics