Mommy rage

Is anyone experiencing this? It feels awful and I need help but I don’t know what to do or who to go to. I’m currently a SAHM and I absolutely hate it. I have 3 kids (5,3,2) and I feel like I’m raising little monsters and I hate being around them. Despite our modeling manners and having consistent discipline, there is constant talking back, arguing, and whining. I’m at my wits end and I feel like a horrible mom and person because I am just so miserable. Does anyone else fee this way or have words of encouragement?