Depressed

I'm feeling quite depressed lately. I'm not liking how things are and I'm not liking who I am. I'm mad, sad, and angry. I just want to cry and throw an adult tantrum. I feel like I had a chance to fix stuff and I messed it all up. I've been mad at my husband for awhile now and I feel that its his fault I feel this way. He's not been making things easy on me and I feel like I'm screaming at him yet he has yet to listen to my cries. I just feel like I would be better off if I up and left with just me and my kids. I'm seriously so done at this point in time. I want to believe that things will change but in reality who am I kidding?