You will miss her for a while.
My parents had to put one of their’s down last summer. They called me the day before to tell me of their decision. I was a basket case for several days. I didn’t help when someone at school (I was taking a university course) asked me that morning if I was the one with 4 cats… i was at the time (2 are mine 2 are my parents) but by the end of the day I’d only have 3. That set me off… but I explained my tears and my classmates were understanding. Riley was one of the sweetest cats I’ve ever had. He gave the best hugs.
At Christmas we counted up all the cats our extended family have - we got to 19. There are also several dogs, a few horses and a donkey!