How do I cancel my apple music subscription..?

Turn off automatic renewal and wait for it to expire. If that's not enough, clickhereand ask the iTunes Store staff for assistance.

(132201)

Where do I find the automatic renewal?

See the instructions in this support document. View, change, or cancel your subscriptions - Apple Support

Link here: Manage your Apple Music membership on your iPhone, iPad, iPod touch, Mac, or PC - Apple Support