TW 36 weeks pregnant, extremely depressed

36 weeks pregnant with a 2 2 year olds. I'm constantly irritated and depressed. I have no energy. No patience. I want to lay down and give up. I thought I'd feel better after a break from my toddlers but I feel just as bad now that they're back. I feel like my daughter hates me and wants me to be miserable. And I know she doesn't actually feel that way. I'm on meds and everything but I guess they're not helping. I dont know what to do.