Sorry to hear you failed your art test. What is ‘Unfocused’? Some sort of school? Keep working at it and I’m sure you will get there.
Ron Lemen has some great anatomy lessons on youtube that you might find helpful. https://www.youtube.com/@RonLemen
I like his approach since it forces you to draw the full figure every time and understand where the muscles are connecting to the bones rather than drawing surface shapes.