Cloth struggles

Hello, I’m new to blender. I’m struggling like crazy, my cloth is acting like the stretchiest fabric in the world, and is having issues rendering that it wasn’t a few minutes ago. Any ideas as to why??? Thanks in advance for the help, I feel so lost. I also have no clue how to upload the file, I’m just a mess. It’s rendering crazy, it’s all spiky, and it wasn’t before and nothing changed.