The next thing you'll need to learn to start making projects, is how to navigate around the scene. The camera has two modes you can switch between which determines what hotkeys are used.
You can also move the camera around the scene by using the "focus" feature. Focus will move your camera directly to an object, and for the basic camera mode will set the focus point to the center of the object allowing you to rotate around it. To focus on an object, you can either select it and press F on your keyboard, double click the object, select it and click the magnifying glass button on The Ribbon, or you can find your object in the Scene Hierarchy, right click it, and select focus.
Now that we know how to navigate the scene, we can start learning how to position our objects.