Hello and welcome to YT! I am so sorry for the lose of your little one at such a young age. You have been given great advice regarding adding a new pup to your home. There are a lot of unscrupulous breeders just looking to take your money by selling you a puppy as a teacup Yorkie. As you can see there are not different categories of Yorkies but a large range in size/weight to the breed that either fit the breed standard or even exceed the standard. Stick around and you will be amazed at the wealth of knowledge that this forum holds.
I don't believe anyone has asked and I surely would not want to upset you regarding the pup you just lost. I am curious what was the cause of such a very your pup passing away.
My oldest of my 3 will be turning 1 next month and I cannot imagine losing her at such a young age.