I have been studying this for a long time, but in the end I could only come up with a rather annoying method.

If you publish a playlist, it’s okay. You can save your own playlist after publishing it! (See Figure 1)

Then there is a playlist that I have collected in My Music, and you can see your collection of playlists! (See Figure 2)

You should be able to understand these two parts, mainly this one, which is more complicated, so I will show it to you directly in the form of a picture! (See Figure 3)

Finally, please note that there is a 2013 song on the right side of my favorite playlist and my name next to it, just like a phone number, that is my name

My own playlist will be posted on the square. I explained it in detail and attached pictures! Hope this helps you