Oh Apricot, you are not being stupid at all, you are still grieving for your beloved pets. You have lost 3 pets in a year, no wonder you are scared for the future of your new Dog.
When we have our adored pets, especially when they get to a certain age, we worry about their future. We know that there will be a time when they will leave us. Our much loved Cat had to be put to sleep over a year ago at over 18 years old, we were absolutely distraught. He broke our hearts when he left us.
My Darling Mum used to say "Better to have loved and lost, than never to have loved at all".
It was hard to understand at the time, but as time went on, it made sense.
We loved our Darling Boy, and he loved us. He spent 18+years in a happy home. We are so very very grateful that we were able to be his guardians for those years despite the pain of losing him.
Your new dog is also very much loved by you. Try not to focus on her expected life span, and focus on the fact that she is with a wonderful and caring new owner who has adopted her and made her very happy.
What more can we give our pets but the gift of happiness?
For the beloved pets that you have so sadly lost, can I suggest a site to visit.
It is called Rainbow Bridge. You can find it online.
It is a memorial site for Pets.
I can highly recommend it. You can post photos too.
It really is worth a look.
Best Wishes to you.