She and the system are one and the same; since they are one, naturally there is no distinction between you and me.
The embroidery technique she used was double-sided embroidery, which is much more difficult than single-sided and takes almost half as much time to complete. She likes such challenging embroidery techniques. The more difficult it is, the more she enjoys it. The more setbacks she encounters, the stronger her determination becomes. Even if she were to hit a wall, she would keep on hitting it, not giving up until she succeeds or exhausts all options.
Yes, that's just her nature. Jian Zhiqing says she's stubborn, and indeed, she's unyieldingly stubborn.
After staying in the system for five or six hours, when she emerged, she stretched vigorously and then became engrossed in her new phone, playing with it until the battery was drained. Only then did she grab the charger to rejuvenate her phone's power.
