He's your mother's son! Surely son trumps brother! You really are a wonderful sister and human being, MN.

I'd be telling your brother that while he's still looking for work, he can do that mornings and take the girls out in the afternoon so you can do your essays. Just a couple of hours - walk to the park, play, come back. That way you're getting some benefit. Don't let it be all extra workload.

Can he cook? He'll need that skill pretty soon, when he moves out and is on his own. Be a good big sister and "teach" him how to follow a recipe. And have him cook for your once or twice a week. Sure, you can help if he needs it, but you're helping him be independent.

You have a lot of extra workload with him there, he can help cut it back a bit. Maybe with playing with the girls, maybe hanging out the family washing while you play. Please don't end up with double chores. (I get Liebs to help with chores, so it can be done!)