The horizontal bar is near the top of the iTunes window. At the left end, there are buttons to select the iTunes media types, such as Music, Movies, TV Shows, etc. When you select Music, near the middle of the horizontal bar, you see My Music. It is there; there is no option to hide the horizontal bar.
If iTunes sees the iPod, it appears as a device button on the horizontal bar. It is toward the left end of the horizontal bar, just to the right of the buttons for selecting media type. This is a screenshot of upper left corner of my iTunes window, showing my 2nd gen shuffle (circled in red) as the device button.

Click the device button, to show the iPod's settings screen in iTunes window.
If you don't see the device button, iTunes does not see your iPod. If this is the case in your situation, the next step is to determine why iTunes does not see your shuffle when you connect it.