How do you know? I don’t know if I’m being over dramatic or if my marriage is just done.

How do you know when it’s time to end your marriage? Sorry this is long I needed to rant. I’ve been married since 2017 and it’s so draining. I’ve told him sooo many times I need help with kids and cleaning and nothing changes. 2 kids in and he just doesn’t help. He wants to be the fun dad only wants to play with them or take them out to buy/do things. I do everything else bathing them, getting them ready, cooking for them basically everything. I’m the default parent in our marriage. If I ask for help he’ll say things like they don’t want me. Yes he financially provides for us I’m a sahm but I need help. I’m literally so overwhelmed and just tired. I cook, clean and raise our kids. I try to communicate with him and tell him I need help I’m struggling and he says things like I work you don’t think I’m struggling. Then if I’m cooking the kids are on me crying and he’s on the couch on his phone/watching tv or playing his game. Then when I’m always frustrated and overstimulated with him and the kids. He will try to throw shade saying snarky things and thinks it funny. It just hurts my feelings because I know I’m a bad mom. I’m constantly losing my cool about anything and everything. For him to just throw it in my face though like maybe if you helped out more I wouldn’t be so irritated about everything. He doesn’t help much with the kids, cooking (hasn’t cooked but 3 times in our relationship (2015). It’s just starting to become more draining and I don’t know how much to take. I feel like I’ll just be happier on my own but at the same time I’m scared of divorce. Especially for my kids 4 & 3 they love him to death but I’m kid tired. Sorry needed to rant and not the best with punctuation.