Please read a few books and become a bit more knowledgeable about dogs so you won't have unrealistic expectations. It will teach you what a wonderful and complex creature they are - smart, loving, loyal and fun. But at 8 weeks, you have what is the equivalent to an infant dog who should still be with his mother and littermates, not being expected to ace housebreaking. Here are some things to start reading if you are interested in learning some more before you find your books. This is from our YorkieTalk Library.
Read this one first:
http://www.yorkietalk.com/forums/pup...w-parents.html
Link on each of these and read all of them:
Puppy Care and Puppy Info Library - YorkieTalk.com Forums - Yorkshire Terrier Community