"What's in a" nail?

I remember as a toddler thinking my fingernails need to be how I want or else when I grow up they wouldn't grow differently how I wanted.

Why did my nails go from their own strong design to looking like something came over them?

They changed to this process:

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They used to look more like this:

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They remind me of these now:

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It's true my parents put me in piano at age 9 and my hands changed.

I had already done gymnastics since age 1 3/4 until 8, up to going there a few times a week, on top of baton sometimes, which was a lot of marching in the heat in Southeastern Florida.