When I'm in the zone, it just flows. The part I find difficult about writing is that I actually get impatient! lol. I want to get to the next part and get impatient describing the action building up to it. I also get frustrated because things always take so much longer to tell than I had thought they would. I think something will be a few lines and two pages later, I'm still writing it. lol
Mostly, I just need to staple my butt down and WRITE.
I run into this too. What I do is just jam it out to get it on paper, er, screen. Then I go back and revise, revise, revise. Sure, the first draft is utter crap, but at least the bones are there to build on.
I also don't start a story at the beginning. If I've got a good action scene, I'll start there, go back to the start, skip to the end, you get the idea. That way I get out what is on the forefront of my mind when all the good ideas are fresh. Revision is the time to sew it all together and beef it up, or trim the fat.
I +1 this but still had to smile, thinking about my own writing days when I was handling two little ones a toddler and an infant. My thought went out to you and had to ask ... the toddler does have "nap-time" right.
However long you have to write, then write. Even if 10 minutes at a time, depending upon your typing skills it shouldn't take long to put down even 500 words (which is roughly a paragraph) which is not bad.
But yeah my own life gets in the way of trying to finish Caught In A Bind. So do what you can when you can.
I found that it's better to go ahead and slam dunk all those ideas down on "paper" so that when you find a spot in your story that can use the idea then there ya go, no struggle to "what do I need to put here?" Remember that the first go around is just the rough draft so all of that can be cleaned up later as you go back over it.
I created a separate page on my HD/folder just for those pesky ideas that make you say "DAMN that's good!!" but haven't found a spot for it... yet.
Just keep writing as you got time for it.
She does still nap, but that's when I eat my lunch so I can actually eat without a kid hanging off my arm begging for bites. Once lunch is done, there's not a lot of time left for writing. Right now is just not a good time for serious writing is all. I know it's temporary and am not too worried about it. Like I said earlier, I do still write, just nothing substantial and just for fun.