How do you ladies stay on top of things? I feel like I’m drowning haha

I feel like I’m always running around like a chicken with it’s head cut off. I have 3 under 3 and between trying to tend their needs and also deal with my mental health issues (I’m bipolar and have a eating disorder ) daily I feel like a mess. I love my life and I’m happy but some days I’m ready to jump in the car and drive to the beach. I know I should give myself some grace but I feel always behind and like I’m constantly struggling. My son has a speech delay and is possibly autistic. So I’m scheduling appointments and therapy sessions for him a lot. My oldest daughter is going though her “terrible twos.” She honestly just wants more attention so I’m trying to give her some extra. And my newborn is just being a newborn and I feel spread thin. My husband helps a lot so I have him to lean on. He is amazing. I know I should go be myself a break but I really need some tips on how to be work smarter not harder. 3 kids is hard!!!!! Especially so young.