You need to know how you previously did it and what changed. If you don't, it may be hard to guess what went wrong.
In the meantime, reset the camera to factory. Use P mode, AF on the lens, ISO 200 with decent light. One shot and just the center AF point in the 80D.
This will wokr for your "ducky"!
I have no idea what setting i had it on that it kept blurring pictures, thanks!
There are two common causes for blurry pictures. One is too slow of a shutter speed caused by shooting in low light. The second common cause is the lens MF/AF being set to MF. Of course, there are many other reasons and combination of factors.
The easiest way to use the camera is to select the Green [A], Automatic Mode, on the top green dial. The camera will try to select everything automatically for you. The biggest problem is that it many not always focus where you want it. It will always try to focus on what it thinks is the closest object to the camera.
But, there are other shooting modes, each with different levels of exposure automation. The best mode to learn the camera and photography basics is P mode, which has been suggested above.
Follow the advice you have been given. Use the Quick Menu, the [Q] button opens it, to review and change your camera exposure settings.
That should just about cover it the basic settings. All of them are the camera’s default settings. In fact, resetting the camera back to a known state, the factory defaults, is usually good idea when you have set something that changed the camera, but you do not remember what you did. There is a menu selection that lets you reset the camera back to factory defaults.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.