why did i pick the header of my profile the same as my profile picture

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I wake up to find
The passing of time
Made my mirror show
Someone I don't know
Now with my own hands
Build castles from sand
But all kingdoms drown
As tides bring them down
My sirens they sing
Laments just for me
I fall to my knees
And beg for release
When my kingdom comes
My will be undone
My world then decides
Where to hang my hide
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i copy myself in school subjects because i'm always going to be better than myself in something