Loading Screen + Saving Issue

I built an averagely-sized project in a very large creative world. I go to get out of the world but the loading screen doesn't change. I've never had this problem before and it only started happening after the most recent update. Even after 30+ minutes, I was still there, waiting for it to save, but it never happened. The day before this I had deleted 20 other worlds because I had the same problem and I thought clearing up storage space would help. That day it did, but for some reason, not today. I would highly appreciate it if this bug would be fixed so that I'm not going to lose anything on any of my other remaining worlds, and I can keep playing the world I've had since covid.