My house is chaos, I find a few things have helped (mines are 8,6,2).
I have one day a week to myself and I do hee haw on it, don’t clean/tidy/put a washing on. I drop the kids at school and nursery and I go back to bed with a coffee til it’s time for pick up - it’s the best day in my week because it gives me time to recoup and reset.
Other than that I try to do things at a certain time of the day. We have a 15 min tidy up time when all five of us blast the downstairs of the house - toys away, hoover, worktops cleaned and dishwasher on. As long as it’s clean enough to sit and relax once kids have gone to bed I can handle it.
Ironing for the week (school and nursery/work) on a Sunday and pop it into a stackable plastic box thing, means I don’t need to think about it and can just grab everyone’s clothes of a morn and go.
Lastly, I had completely lost myself as a mum. I’ve gained weight, drink too much wine and make an effort less than I should to just be the person I was before so I’ve started a small biz I can do from home and it’s purely for me. I enjoy it so much and the happiness I’ve gotten from it rubs off on home life, my energy and my motivation to do other things! X