HOW CAN I ADD TEXT UNDER OVAL SHAPE?

This is from pse 2022- no reason why it shouldn't work in pse 13.

Master the "text flipping" o nthe botton of circles and people will think you are some type of guru!

Have a look here:

https://www.google.com/search?q=ophotoshop+elements+13+text+on+a+path&oq=ophotoshop+elements+13+text+on+a+path&aqs=chrome..69i57j33i22i29i30.12199j0j7&sourceid=chrome&ie=UTF-8