I Must Have Been Reborn the Wrong Way

I worked hard for over a decade and have a house, a car, and a boyfriend who loves me back. I don't come from a wealthy family, I have no cultivation skills, and I'm just an ordinary person. So why did simply sleeping in with my boyfriend get me earthquake-shaken back to age fifteen? I'm so done with this! Wait, a System? And why is it the Jinjiang kind? I want the Qidian kind! I want to fight monsters, level up, and rule the world! Aaaaaah! (Okay, I was just kidding.) Boyfriend! Wait for me, I'm coming! Waaah!