We need to get out!

About my mom and I:

She's actually my grandma, but she's raised me since birth. I've always been able to talk to her about anything. When I was around 16, my mom took me out of public school because I was being bullied. I spent 5 years homeschooled and never got anywhere. I always compare myself to the friends I had in junior high, feeling like nothing because I haven't graduated. It was probably my 3rd year of homeschooling when it was hard, extremely hard to talk to my mom. She'd want me to do nothing but school, any free time I had, she had me do extra schoolwork. I was under extreme stress and it got me nowhere. I'm 19 now, engaged to the love of my life, and my mom doesn't like him. She's judging us for 'having sex before marriage', but when I was young I told myself that the person I'd lose my virginity to would be the person I stay with for as long as I live..

About my fiancé and his dad:

I moved in with him and his dad two months after dating. His dad hates my mom, he doesn't even know her and thinks she's a terrible person. But my fiancé and I can agree on one thing. His dad is a horrible person. He's beaten my fiancé, belittles him, and has tried getting fresh with me. He had a seizure from alcohol withdrawal, he went on a drinking binge, and we didn't know he stopped for two days. The table in the living room was covered with beer cans, 64 cans of beer. My fiancé and I were dealing with it as much as we could, but it was hard for me to stay in the bedroom hearing them argue, it hurt worse to see his dad beat him..He was drunk when he kissed me and basically said I was whore material, he even watched porn in front of us. This last time his dad went on a drinking binge, we couldn't take it anymore. We packed up everything we could and went to my mom's house.

Overall plan:

Since my mom doesn't approve of my fiancé and I being sexually active, I plan to get a job, pay off my debts, get a car, and get a place..I love my mom to death, I don't love not being able to talk to her anymore. When my fiancé is done with school, we have to get our own place.

Sorry this post was long. I just need advice on several things, what could a good job be? My uncle and my mom tell me to avoid the food industry. What can I do about my fiancé's dad? He loves his dad to death but also hates his guts.