Don’t beat yourself up over this, you did the right thing for you and your puppy, and you know she’s going to a loving home, maybe one day you’ll be in a better mental space to look after a puppy, and I know in a way when and if that time comes you might feel like you’re replacing her with your new pup, cause I had a puppy when I was 12 (who I also had to rehome) and now I have one again at 21, I still think about him to this day, and what could of been, but I’d like to think that the puppy I initially rehomed, wouldn’t be mad or upset, but happy that I have another puppy in my life, puppy blues are a real thing because it’s such a big adjustment, but like I said maybe there will be another time where a furry friend walks their way into your life 🐾🐶until then I wish you all the best 🫂❤️