Ideally you need a local RV friend.
Here's some help getting started.
AC Power plug. It does look like a dryer plug but it is a 110 VAC plug rated for 30 amps. Campgrounds have outlets that accept these plugs. You can go to Walmarts to their RV section and buy an adapter that connects to this and allows you to plug into a regular 20 amp outlet. (Mine looks a little white because it has some paint
There are two ways to get water in a trailer.
One is to pour water into the water tank and use the trailer's water pump. On the rear corner of your trailer, door side, their is a water fill spout. You open this and pour water directly in. It should hold about 12 gallons. You can also use an RV hose to do this, This can also be bought at Walmarts. These hoses are white and do not give the water a hose taste.
The water pump switch is typically a rocker switch located on your kitchen counter, mine's on the side.
The second way is to use that same white hose and connect it to the city water fill point. Mine is to the left of the door. Your's may be in another place. Scamp usually has a label that says city water. Once you connect the hose and turn it on. Water will be available at the tap.
(My city water connection looks a little different from your's because I have a quick connect on it:
Hope this helps. I'm sure others will chime in.