A little background on my sister:
My sister started doing drugs and having sex at a fairly early age. My sister was only 14 when she first tried crystal meth, not that it was the only drug she did. She got pregnant when she was 16 and she had an abortion before that. Not long after she got pregnant she got in a physical altercation with my mother and went to live with my grandmother. My sister was not a terribly responsible parent in my opinion and always blamed my parents upbringing of us on all her problems while turning a blind eye to her own parental failings. Eventually my grandmother died and left her house to my mother who allowed my sister to continue living there. For a while things were looking up for my sister; She was in school, had a boyfriend who wasn’t a complete loser, and she had motivation, or at least it seemed that way. I’m not sure exactly what went down the last year before she completely lost control, I’m sure there were signs but I think my mother probably ignored them or didn’t want to believe it was happening.
My mom came home crying one day and said she went to the house and it was a complete wreck and my sister was missing. We later learned that my sister had dropped her daughter off at the father’s house and never returned to pick her back up. I can’t even imagine what that must have been like for a 6 year old kid. My sister began living on the streets and selling her body for money but she would still occasionally call my mother from time to time. Eventually she was arrested and spent about 6 months in jail. When she was released my other set of grandparents offered to get her a job and let her live with them while she went to school and allow her to visit with her daughter and get her life back together. The first day out of the prison my sister started using again and went back to living with shady characters and prostituting herself.
Fast forward 3 years and my sister is still living this “lifestyle”. The last time I saw her was at a relative’s funeral and my sister was obviously on drugs and looked to weigh about 90 pounds or less. My sister hasn’t seen her daughter in a couple of years now and no matter how bad I feel it must be so much worse for my niece. She says things like my mom chose drugs over me, but she isn’t old enough to understand that my sister chose them over everything and everyone in her life. My sister called my mom about a month ago and told her that a guy had kidnapped her and basically held her hostage for a couple of days. She is living very dangerously and I won’t be surprised if she gets killed or something else really bad happens to her. My sister and I were finally beginning to bond more before these things happened and we are at the age where we could really be hanging out and having fun but those things will never happen now. I wish I could talk to my sister but she obviously doesn’t have a strong enough desire to change her bahavior and I don’t even know where she lives or have a phone number to call her. But no matter how bad I feel about the situation I can’t feel too bad for myself because it is so much worse for my niece and will only continue to get worse and she continues to grow up. There isn’t any easy way to explain to a child how their own mother abandoned them. The title pretty much says it all, I wish I had my sister back. 
I’m drunk so I apologize for any spelling or grammar mistakes.