from above I dont see anything like a switch button for turning things on or off for the switch. Why is it so?
PaperUI is an administration UI - you should use one of the other UIs (eg Basic) for control. Also, this is a list of channels - control is performed through items…
You will need to put together a sitemap of course - I suggest you have a read through the wiki to familiarise yourself with the openHAB concepts.