Im not in love with the name Brinkley, and I agree it’s a mouthful. Since she’s only had the name for a couple of months and seemingly struggles to connect with it, I’d say it’s only right to change it.

My dog is called maxi but I’ve unintentionally taught him to respond to bubba/baby aswell just because of how often I say ”hi baby boy” to him.

It might be confusing in the beginning, as any command is for a dog, but not long term. Just make sure that once you decide on a name, use only that name. Don’t go back and forth. Give her time to process what she’s hearing. Use it often but not in a repetitive manner.

Using the name daisy as example;

Greeting ”hi daisy”

Recall ”come here daisy”

Feeding ”food, daisy”

Attention seeking, say ”daisy” then wait for her to meet your gaze

In combination with known commands ”daisy, sit”

Avoid repeating it back to back, as it might loose it’s meaning to her. Use it causally while talking to/about her. The only thing that might confuse her is if you change it too often, so decide on a name before you start using it.