Cannot resize image in photoshop?

[franki_]

I have "Show Transform Controls" checked but they dont work. (Actually, why do they let you turn that OFF in the first place?) I'm pretty sure I somehow accidently put in a shortcut of somekind.

[Bojan Živković]

Can you post screenshot of entire window with Layers panel visible? Perhaps you are on empty, Background or locked layer?

[Derek Cross]

Try: Image > Image Size.

https://helpx.adobe.com/photoshop/using/resizing-image.html