There is a sad stereotype of the guy or gal who is at work physically but longing to be with his/her kids--then once with the kids s/he is bogged down with thoughts of work and all that goes with it. This is the short of it but can happen between any area of life/thought.
There is a solution. It's called: Faithfulness
(Bear with me as I choose a gender to keep it simple.)
Over time, as our heroine's mind wanders at work to the point where she is no longer able to do the quality of work she knows in her heart and mind she is capable of, she'll make this wandering--this compromise into a habit and begin to medicate by watching the clock, daydreaming, surfing or... Now she's exacerbating the issue. Deep down she knows that she's not living in integrity and it's killing her!
Her demons go to work on her so she questions her worth, her trustworthiness and more.
So she goes home. As she kicks the soccer ball around the backyard with her kids, she's hit by the guilt that she's not getting the job done in her work. As she becomes more distracted by thoughts of her disappointment for not being more present and productive at work, others perceptions of her and her boss' perspective she inadvertently ceases her faithful execution of her role of mommy.
Now that scamming voice will give her hell for not living into her values or doing what she said she would with regards to being present with the kids or...
As she lays her head down at night, she doesn't rest easy as she contemplates her day of distraction. She has closed her day like she started it, compromising it through misallocation of her emotions and thoughts and efforts.
One more assault from the scammer has her questioning her capacity to do anything, to be effective at all that she has to do and...she peters off to sleep.
She might want to blame busyness or some other external force but the fact of the matter is, she needs to be at work when she's there, be with her kids when she is there and be in bed and rest in peace when she is there.
Simplistic? Dude, try again. It's everything. Try and be present at work over some time and then try and come home and consistently be fully present with your kids (or whatever you do post 9-5), try to let it all go and do what you're supposed to do when it's time to sleep.
It's true that it often takes practice to be where you are and be faithful to what you're called to do at any given moment. That doesn't excuse us from our need to do just that--be faithful.