How do you not go insane?

I have 4 boys 5 and under. I cannot handle the messes everywhere I am constantly cleaning. They do pick up after themselves before they go to bed. But I work full time outside the home and my husband doesn’t seem to care if the house is a disaster and it causes me so much anxiety. I’m on the verge of going insane every single day.

P.s. my house also never looks clean because I feel like I can’t keep up with all of the things happening at once. I can’t handle all of the crap.