Ennek a dalnak a szövege mit jelent, miről szól?

Érdekelne,hogy miről szól ez a dal: https://www.youtube.com/watch?v=PstrAfoMKlc

A refrénnek a jelentése érdekelne

Refrén:'Cause it makes me that much stronger

Makes me work a little bit harder

It makes me that much wiser

So thanks for making me a fighter

Made me learn a little bit faster

Made my skin a little bit thicker

Makes me that much smarter

So thanks for making me a fighter