Hi SalvadorJimenez,
We appreciate you reaching out to us about Apple Music. Rest assured that we'll do our best to assist you or get you pointed in the right direction.
We understand that you are looking for your playlist which you created back in 2018.
Also, we understand that you are looking for iCloud Music.
iCloud Music is now called Sync Library. Sync Library is a feature that is included with Apple Music.
Hence, when you cancel your Apple Music, you will also lose this feature. You can use the article below as a reference.
Turn on Sync Library with Apple Music
At this point, it is best to rebuild your playlist. The article below may help.
How to make a playlist in the Apple Music app
Take care!