After 21 years raising kids again

I am 43 years old will be 44 years old soon. I have raised 3 kids the youngest one is 22 years old. Now I am raising 3 more kids. I have had them for a year and a half. There is 2 girls and 1 boy. The oldest is 7 years old. The 2nd oldest is 5 years old. The youngest is 1 years. The mother has had 4 children and doesn't have any of them. She had her first child at age 15. She had a child every 2 years after the first one. I am not related to this girl but have treated her like my own until recently. She gave me custody of 3 of her kids. The other one lives with his father not in the same state as her. I will go into more details in the story. So stay tuned for a good story.