Extreme anxiety/wanting to hurt myself and children

My kids are 3 years and 6 months old. My postpartum anxiety has gotten so bad if the baby has a bad night I’m so anxious he’ll never sleep again and my life will be miserable. My brain is constantly going going going I can’t shut it off. I’m going crazy with all the what ifs. I’m taking my anger out on my husband and my kids.

My baby is transitioning out of a sleep suit and it’s horrible. He went from sleeping 11-12 hours at night to waking every 10 mins. I get so angry that I have thoughts of doing horrible horrible things to him to hurt him. Then I’m so tired the next day I have the same thoughts about my toddler.

I get breaks when my husband takes over or my mom helps but my brain still never shuts off. I feel like I’m going nuts.