You did a darn good job on Woolly Boogie. As you discovered, it is harder to read all of those notes and symbols than it is to play them.
Now we move on to Ciribiribin, which takes us up the neck. I am attaching (on the resource page) a scan of Ciribiribin and Spring Song with my arrows indicating when you shift up the neck. The numbers above the note indicate the fret, the number below the note indicates the finger you use. I have not idicated the string. I think you can figure that out.
Rather than having your finger randomly trying to find single high notes, please think of shifting your hand up the neck to a new position and having an anchor (usually your first finger) to help you keep your place on the neck and find the notes.
For next week, please practice Woolly Boogie, and Ciribiribin, and the secondary dominant 7 Chord exercises on page 56-57. In class we will play the chords for When Irish Eyes Are Smiling and My Grandfather's Clock. We will not play Spring Song in class, mainly due to the lack of time, but I encourage you to work on it over the summer.