So irritable

Honestly over the top irritated constantly. I can’t control it but my 4 year old makes me the most irritated and it’s not even her fault. I’m easily set off and then I need to shut down or it gets worse and then I just push away from everyone. Please tell me I’m not alone with these raging hormones? Or that this will end? I’m an awful mom right now. Literally she can be playing and I started to get flustered and overwhelmed and Need to separate myself and I have no idea why! I work all day and at night just want to relax but no matter how much I relax I feel so tense around my SO and daughter and I don’t know what to do.