Letting it out/letting it go is a much better solution FindingMyNext, good idea to come here and talk it through. One thing that I try sometimes is to make a list of good things that are happening, or a gratitude list, when it seems that everything is bad. Usually it's not - but we tend to bring the bad things to the front of our mind for some reason. I have 3 kids too and sometimes wonder what evil/alien planet they came from, especially the teens or almost teens. But then I remember that I'm pretty lucky to have 3 evil alien beings around - lots of people don't ;-).
Congrats on your 441 days, that's pretty amazing.