My mother has been a drug addict all of my life. My sister and I had a very troubled childhood. We were taken away from my mother several times in our life by CPS and sent to live with my grandmother whom ultimately gave us back to our mom every time. My grandmother was unstable as well. She verbally abused us and was always absent. I practically raised my other sister because my mom couldn’t do so even though I was a child myself. My mother had my youngest sibling(now 5 yrs old) and we thought she had changed. Unfortunately she is still doing drugs and now has been evicted and lives with a friend. (My youngest siblings father is addicted as well and is always out of work) she is my half sister. cps has been called on my mother for my youngest sibling once before but nothing came of it. I want to give my sister a better and more stable life. I know I could be a better parent to her than my mother and I don’t want my youngest sibling to have the same life as me and my other sister(we are both adults now). What requirements do I have to meet in order to take custody of her? I know it will be a long battle but I know this will be better for my youngest sister. I am in Texas. United States. Thank you in advance.