Can i become emancipated?

I'm now 14, i'll be 15 on December 6th. I've been through a lot in my past, i've been verbally, mentally, and physically abused. I've been molested and thrown away. My father was abusive to me throughout my childhood. My mom and dad finally seperated in 2007. The year that we moved, things got real bad. My mom was constantly out on dates and left me at home to watch my at that time 6 year old brother. My mom and I have never gotten along. We've gotten in physical fights before and everyday more and more arguments were occuring. 3 years ago, my 7th grade year, i went through a depression stage and overdosed and was sent to a rehab center for 3 weeks. When i got back, nothing changed. My mom and I were still constantly getting in fights. Each day my dad would call me or something and remind me about how worthless i was and how he wished i would've never came into the world. I started having a long distance relationship with a boy and hour or two away. After dating him for 9 months, we ran away for two weeks. The whole time i was gone, my mom nor dad called me not one time to see if i was okay. After we turned ourselves in to the police, my parents came and got me and acted lke nothing even happened. They didnt care about how i felt, or what went on. The night i came home, my mom said to me "I really dont want you living here, i'm scared you might kill me in my sleep." The next day, she kicked me out and i moved in with my granfather. I've been living with him for 4 months now. My father isnt apart of my life. He doesnt call, visit or anything. He sends my mother child support, and every once in a while she'll send a little bit for me and keeps the rest for herself. My grandfather cant financially support me. He's retired and lives on a disability check. I've wanted to become emancipated since i was the age of 12. I've looked up on all the regulations. I can get a job, and my fiance' has a job and is planning on getting a place when he turns 18 in a couple months. When i turn 16, i plan on getting a job and moving in with him. I've researched and researched and have set my mind to this. I know i've screwed up alot in my life, but i've also matured and i know that i cant stay around here much longer. I want to be my own guardian. I want to have full control of my own self. I have good grades, i'm big on school and my future. Is there any possible way i could become emancipated?