Keeping on top of it when it's already sorted is a lot easier than trying to get on top of it when actually you're at the bottom of the mountain.
So don't compare yourself to your friend, you were starting out in very different places!
Moving with a tiny must have been chaotic.
I couldn't contemplate kondoing with tiny people around.
But I would do tiny things myself. So, when bathing the children, if you can let go of the baby safely, have a quick sort in the bathroom. Tiny things can make a big difference - bin the empty loo rolls and bubble baths, wipe down the windowsill, shine the taps. And if you're reading this wondering what on earth I'm suggesting since you have no rubbish lying around in the bathroom anyway, then you're not half as drowning in chaos as you think you are!
Same with the kitchen. Yes it's grim trying to do anything whilst small people are just that too small to entertain themselves anywhere else without creating mess.
We don't have carpets; I used to put my toddlers in a baby bath on the floor of the sitting room with an inch of water and a mountain of bubbles, and a cup and spoon. They'd play safely as I tidied around them; I could fokl them into thinking they were helping by passing them safe things to wash - plastic toys, odd socks, that sort of thing. And I could get quite a bit straightened out whilst they had a riot in the tub.
And the spilt water and bubbles I mopped up with big towels, and that cleaned the floor nicely too!
In theory, we have a separate play room and sitting room. In practice, they play and scatter and destroy wherever I am. So rather than fight it and get annoyed, I now have toy boxes or toy bags in every room. Toys get flung into the box behind the door, or posted into the cupboard, whenever. Means I can, when I'm motivated, have a grown up space downstairs within minutes of having put them to bed. If you have a sofa on legs, rather than solid, then you may find that underbed storage boxes fit underneath. They are brilliant for toys, especially bricks/Lego/stuff which takes up loads of space otherwise.
I can't do fly lady's 15 minute tasks when I'm surrounded by grouchy children either. But I can do two minutes. So when I boil the kettle for a drink, I unload the dishwasher so it can be loaded again. Or shove a load of washing on. Or take a scrubby thing to the sticky patch on the work surface where someone left a yoghurt coated spoon and three sugary teabags.
And if you do all these things already, and think I'm being ridiculously patronising, then please know some of these are fairly new ideas to me - and you're not drowning quite as deep as you think you are!
12 months and a 3 year old is a difficult combination. Is the 3 year old in preschool? one thing which helped me a lot was that rather than have 5 mornings or 5 afternoons, I had 3 mornings and 1 full day. That gave me a day when we had no timetable at all, so could go off and have fun, and another day when I wasn't constantly either dropping off or picking up, which meant there was just a bit more time to get things done.
It gets easier. They get useful. Ish.