How I handle the loss of any pet...I use EFT , some people call it Meridian Tapping. It involves using your fingertips to tap on specific acupressure points on your face and upper body while making statements about your situation, the loss of Clairese, in this case.
It's easy to learn and it really does help blunt a painful loss. It allows you to grieve without feeling devastated.
Whenever you start to feel sad again, try to replace that memory with one where Clairese is healthy and you're feeling happy just being with her.
That's what I do. If I can help in any way, please PM me.