I've tried to autoprice my shop for the past 3 days and it does not change the prices. I tried clicking no change on items above 5m and it still is not auto pricing my shop :/

Are you sure you're finishing the process? There are 3 total buttons you have to click, if you just autoprice without adjusting any prices [edit] I just autopriced and it went through fine

Thank you! I feel like an idiot now lol

You're welcome, I'm glad you worked it out!