r/terrier

I am not sure what to do anymore. I got a puppy from a local rescue. When I adopted her she was with a family of lab mixes. She was the only fluffy one and was so cute. I found out later the lab mix mom was not her actual mom and her mother didn’t make it. This lead me down the rabbit hole to identify what she is. I did the DNA test and she is a mix of 23 breeds. The most predominant ones are Terrier and chihuahua. I’ll attach a photo too.

So I have had her since February, I got her a few months after my beloved 7 year old beagle passed from cancer. I was not doing well. My eleven year old beagle and I were just so sad. I couldn’t stomach getting a beagle again because it hurt so badly. I adopted her and she is now about 5/6 months old. My eldest beagle absolutely hates her. Can’t stand her in his presence. Which I understand she does not have an off switch.

She has all her adult teeth but is still very nippy. She does not know how to go to sleep without me putting her in the kennel. She is potty trained, thankfully. But I am exhausted. I’ve done dog training, I have her go to camp once a week. We do training so she knows sit, pillow, kennel, lay down and we are working on paw. She has an insane amount of energy. I don’t know what to do. I’m tired. My eldest beagle is now sick with Cushing’s and she is a menace.

It was never like this with my youngest beagle when he was a puppy. I’m worried I made a mistake. I’m worried that she belongs in a house with a yard which I don’t have. I live in an apartment which was perfect for my sleepy amazing beagles. I walk them four times a day and it’s still not enough to calm her. Please someone help.

Do I give her back to the rescue? Do I stick this out? I’m stressed out of my mind and I just want to do the right thing for her. She’s already so attached. Like when I go to the bathroom she will whine outside the door. I’m overwhelmed. Please any advice.

Also thanks for allowing me to vent a bit. It’s been a lot of crying on my part.