It’s a balance between protecting them and protecting yourself.
I used to find Saturdays the hardest and I realised that part of it was an expectation vs reality issue for me - I longed for Saturdays as I work full time and felt like I never got to see her so I thought oooh this is my chance and we’ll have a lovely day but it would always end in tears for at least one of us (for a while) until I had a chance to reflect and realised my expectations for the day were a bit skewed and that I had to take into account more of what was happening from her point of view (excitement, but also being out of routine from nursery, tiredness from being excited etc…) once I learnt to chill out a bit and be less “we have to achieve this, and this, and this” and be more flexible and fluid things on both sides improved….
I keep the way felt growing up in a house of shouting in my mind and I don’t want that for mine…. My husband _never_ shouts so it really accentuates if I do. Sometimes if I can’t escape the situation rather than shouting I opt to go a bit robotic and monotone and just get myself through the motions (lasts minutes), then that can kind of re-jig things as such and you’ve moved through the moment, you don’t shout and they’ve not really noticed that they’ve just sent you to hell and back!
I’ve also heard screaming into a tea towel works too

- didn’t work for me, hence my predilection for coat hangers. You find your thing that helps. As long as it’s out of the room and away from them. Apparently staring out the window at something green helps a lot too.
Parenthood is a lesson in resilience.