Welcome to YT!
Housebreaking yorkies is quite an adventure for most. There are a lot of threads on it that, if nothing else, might make you feel better knowing you aren't alone in the challenge.
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226