cant move scene camera when an object is selected

this is really messing me up, the only way to move my camera again after clicking on any object is to click the sky to deselect. i cant even doubleclick objects in the hierarchy to zoom to them.
possibly related issue is i cant move or rotate objects. i probably accidentally hit some shortcut for something i dont understand as im just learning my beginner skills.

this problem persists after relaunching the app

i guess my issue only was being on the wrong version of unity. if it was that simple this must be a common problem occurred.