<human>: Give me the gist of the text in a nutshell

Let me start off with tell you a little bit about my sister (for the purpose of this post we'll call her Lavender.) Lavender, is older than me by a year, but we had an intense early childhood, that she remembers and I really don't. She's always had some emotional issues because of it, so I've always kind of taken care of her. 

As we've grown up I've been pretty successful, I have a path in life I'm confident in, a wonderful husband and an amazing son. While Lavender on the other hand, has had a rough go of it. She has 3 children, by 3 fathers, none of whom she's with. She's never really held a job, barely living off of Social Security (My oldest nephew is autistic) and other public assistance. She also, has no license or car.

A few month ago, she moved into this crappy little duplex about 8 blocks from my home. Now that she's closer to my family, she calls me to help with almost everything. She doesn't have a washer and dryer, so it's become my responsibility to pick up her clothes, launder them, and return them. It's also become my job to take her to the grocery store, or go grocery shopping for her. I have my own life to deal with though, I can't manage her household and mine.

I know my sister though, and she will cut people off just for making her mad, and I love those kids with all my heart. I'm afraid that if I tell her I'm not going to be her doormat anymore, she'll keep me from seeing them, but I really can't just bow to her every whim anymore, she needs to grow up. What the hell do I do with this one?
<bot>: My sister, a single mother of 3, relies on me for everything. I want to tell her to grow up, but I'mm afraid she'll cut me off from her children.