I want to leave my daughters father

We just aren’t working and I feel like it’s making parenting even harder trying to stick it out. I’m stressed, depressed, it’s just not fair. He knows our issues and I’ve tried to explain numerous times my feelings but he acts as though he does nothing wrong and doesn’t see what I see. I want to leave my family is telling me now we have a child I need to stick by and try again but I’m all out of tries. My sanity and peace of mind are at stake.