Sahm to 2 preschoolers and a toddler, and along with all the cooking/cleaning/shopping drudgery, I go to college part time so have a stupidly large mental load. Because of this, my attention span is fairly shit. However, it is even worse when it comes to my kids. I constantly find myself zoning out and going into my 'stuff to do' list in my mind while they are talking.
This isn't helped by the fact that my eldest DC talks NON FUCKING STOP and asks a bazillion questions an hour (mostly questions I have already answered 100/1000/10000 times already). He can also speak in a very whiney tone (we are working on this), and I actually think that my brain has tuned the frequency out as I regularly don't even hear him when he starts to talk.
I get huge mum guilts for not listening to my kids, and I am aware of it when it is happening, but don't know how to stop it. I know the problem is my mental load, and I do try and practise a 10 minute mindfulness meditation daily, but it doesn't seem to help.