There is no love like your first love - at least that's the case for me. My Sunny died 3.5 years ago and I think of her often. She was with me for 13 years. She was with me before my husband, before my daughter. I miss her but time does help. She will always be my true love!
I now have Ginger and she is a joy! She has a totally different personality from Sunny. They are like night and day and I love her too. She has her own quirks and expressions and I wouldn't trade her for anything. Yorkies are contagious. It's hard to have just one. I hope to add another baby girl sometime in the future. Just have to find the right one.
Hugs to you on this one year anniversary.

It will get better. Love your little ones and enjoy every second.