Cannot fill any text/shapes?

Hello everyone,

I was working on a prototype for a class and, while using the Cmd-C shortcut to copy, I accidentally hit a button. I tried to undo it but it didn’t work. Now all of my text is outlined and cannot be filled, and my shapes cannot have any fill color. I can physically click fill and select a color, but even when I pick black, it doesn’t fill with any color.

I’m not sure what I did, but I just want everything to look normal again. Can someone help me? I’ll attach what the text looks like now.