if she's not paying attention to you, she's telling you the distractions, duration, or distance are too much. i would start by using the name game in a quiet setting like your living room or whichever room in your home is most comfortable for her.

toss a treat on the ground right in front of you, let her eat it, and then say her name. wait until she looks at you, then mark the movement of her turning to look at you (some people use a clicker, some people use a marker-word like "yes!"), drop another treat, say her name, and wait for her to look at you again. the most important thing here is the timing. as soon as her eyes start to move in your direction, that's what you want to mark.

once she's got that down, you can start adding distractions. start very small. toss the treat a little further away from you at first, then maybe move to the other side of the room. wow! new place! new things to look at! we call this "proofing" the behavior. then you can move to another room. if she's not reliably giving you the behavior you ask for, go back a step. she should be succeeding about 90% of the time before you move on.

these sessions should be short (5-10 minutes tops) and preferably multiple times a day. i typically train 3-4x a day on various skills, depending on what my goals are for any given dog. if she's not responding to the treats, get better treats. my dogs tend to love string cheese and hotdogs the most, but every dog is going to be different.

here's some fundamentals on clicker training which are really useful if it's a new concept to you: https://www.clickertraining.com/whatis

I'm not a dog trainer, but when I was a kid I was the only one our rottweiler would listen to 100% of the time if I called him.

When you call her, are you like maybe somewhat anxious or uncertain that she'll listen? I know it sounds like a catch 22, but I feel like when my parents called our dog they had like this anxious expectation that he would just go do what he wanted anyway. When I called him I felt, and he responded, as though he simply would come as I was expressing that he needed to.

But like, I also didn't really care what he did in terms of dog stuff? Like, I wasn't trying to get him to go a particular place all the time and I didn't ask a hell of a lot, so I don't think there were as many opportunities for waffling and confusion. My commands tended to just be like, come here or go to a specific person (because he'd ignore their calling), or go lay down.

Again, I'm not a dog trainer and the one here can certainly correct me if I'm way off, but for me it was mostly about confidence and not waffling, I think.