Why can't I select just one layer/object to move?

I just got a new iMac and dl'd the latest Photoshop CC.  Now I can't select a layer and then move what is on that layer. If i click on some other object by accident, it moves that object instead of the layer I selected. Command + click works but only if I carefully click on the object I want to select. I can't click outside of the canvas to drag something anymore either. If I click and drag across the canvas, it selects multiple layers and then moves those layers. I want to be able to command + click on object and move it as well as selecting a layer and moving just that layer. Already reset my workspace so that doesn't appear to be the issue. Also don't like that the default for transform is already constrained -- I automatically press shift and have to keep going back.

What is going on?

Thanks!