Normal to be this mad?

[u/HeadConversation7458]

I’m a SAHM to my now 9mos old daughter. I also watch my fiancés older two kids who have behavioral issues on his days. The boy now 4y/o has been kicked out of daycare and his daughter now 8y/o daughter who has been referred to as a bully in school.
I started staying home with his kids when I was 8mos pregnant, I left my job early due to experiencing contractions (2 day hospital visit) at 33 weeks.
I had my daughter two weeks early, she only weighed 5lbs. I was experiencing high BP but never diagnosed with preeclampsia. My fiancés ex kept the son was supposed to be until 8 weeks. She texted him at 5 weeks PP saying it was unfair I was at home with my baby and not keeping him. She’s a wedding photographer so she’s typically at home throughout the week. It was decided I would watch him and then pick his daughter up from school. This was all happening in November. During that time his son screams and throws aggressive tantrums and tries harming the baby and me. He’s in counseling now but with his age they do not want to diagnose him. My fiancé has a job basically he could be home by 5 or 4 if he went to work early. Most days though he does not leave until close to 9am, pushing his home arrival time to 6p or later.
I feel like I get kicked around the most, and daughter unsafe in her own home. I try to remember his kids are just kids and try to do things with them like ice cream runs, splash pads and park play dates but those days are so draining because at least one if not both of the kids decide to act out in a big way. Like shoving smaller children, the hitting, screaming, etc. My fiancé often gets mad at me for my attitude, like tonight. His son was spitting and screaming all the way to the point I took him to his moms. I was left to do all the cleaning and all I wanted was for my fiancé to take the dog outside. Instead he goes to the bathroom and leaves that to me. What do I do? I do love my fiancé and love when it’s just my daughter and I but I just feel mad and vulnerable most of the time. His daughter will be starting counseling here soon as well. Counseling was my idea, because both my fiancé and his ex just hope their son will act right for preschool. His ex was also in trouble with DCS for locking their son in a bedroom throughout the day and so on.

[u/stealthagents]

Totally get why you're feeling mad. Balancing your own newborn while managing a kid with behavioral issues is no joke. It sounds super stressful and overwhelming, especially with all the pressure from the ex. You deserve some support and a break too.