I'm 15 years old 5'0 in height and I'm so skinny that when I breathe in you can see my rib cage.
I've never won any of my friends in an arm wrestle,they take me down within seconds, and when I go to the gym I struggle to lift anything heavier than 20kg. I can't even lift the 15kg weight above my head. I weigh 35kg as well. Am I weaker than an average girl?