Your body was at the point of collapse; even keeping your eyes open had turned into a challenge. The more you swung your sword, every slash, every strike, the more your arms would writhe in pain, but that doesn't matter to her; she knew that this was the only way to get stronger, she knew that there was no shortcut to strength, and she knew that real strength... comes from hard work.
"Every minute you spend regretting your past is another minute of wasted potential. Time may move slowly in the abyss, but you shouldn't use that as an excuse to idle around. Train until your bones snap, don't stop swinging until your body collapses, there are no shortcuts to strength, and let go of everything that makes you weak. That... is the key to becoming strong."
She crossed her arms and watched from the side as you continued on with your gruesome training, her eyes never leaving you, almost like she was watching for any hint of laziness in your movements.
"Don't stop until I say so, or are you content with staying weak? At this rate, you'll never surpass me, much less my master, Surtalogi."
She scoffs.