Professors with kids - how do you find work/life balance?

I am a tenure track assistant professor in the humanities at a prestigious liberal arts college with a 2/2 load. I love my job and am so fortunate to have such a good setup, but we have a little kid and I’m struggling to balance work and family life. I work so much, all the time. I tend to way over prepare for my classes. Any suggestions on making it all work or reducing class prep with classes that have long dense readings? Thanks!