Xuanhuan: I Collect Emotions to Grow Stronger Without Limits

Collecting Emotion Points to Exchange for Items with the System, with Negative Emotions Getting You Bizarre Stuff

There's a book I can't find. I read it a long time ago, and recently saw something similar that made me want to revisit it. The protagonist has a System that collects emotional points. Positive emotions can be exchanged for good items, while negative emotions get you bizarre items. She used all the weird items on the original protagonist.