unknown 90s movie

I think this movie takes place in the early 90s. They were poor the mom was a alcoholic, she had three children. Oldest which was a daughter I think maybe 17or 18 she was shot and killed at the end I think after pushing a sickly friend home in her wheelchair I think the friend had cancer. The middle daughter was more of the mother figure towards the younger brother. She also spent time with a older lady where they made baskets. There is a song in my head which is not English. I think the ethnicity is Hispanic but I’m not sure the song wasn’t in English or Spanish. Don’t remember anything about the younger brother. If anyone has any questions ill do my best to answer

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