@Lioslin It's not that she felt bad about using the knowledge, but that she's being praised so much for it(being amazing etc) when she felt like she was just repeating what she learnt on earth.
Ah so it was 斗转星移, referring to the skill from Demi God and Semi Devils (I think they translated is as Star-Shifting Technique in some versions of the book's translation), instead of the Star Sucking technique from Smiling, Proud Wanderer.
@andysulung ah, I was referring to 吸星大法, the skill of Ren Wo Xing from Jin Yong's The Smiling, Proud Wanderer. Since this Manhua seems to like making references to moves from popular wuxia stories.