My family doesn't accept me for who i am

It hard to explain so please understand. My family doesn't accept for who I am?
I grow up with extremely religious family, so I lived without my father and my twin sister( they are dead) So my experience living with my family.

1. They pray and bash others by judge.
2. I used to be Christian but I am not anymore, so I turn anti religious because I wanted better life instead waiting for death to go heaven like most religious people do. So my family saying I worship the devil by judging. I don't worship devil or any gods.

3. They against homosexuals and took me to church because bisexual. So I did try move out since I'm 18 years old then they threaten me by calling the police if I do leave the house.

4. My mother doesn't want me turn gay or turn transgender ( I want turn transgender because my twin sister).

5. My mother doesn't want grandchildren so that why it ridiculous, I am bi. My mother paranoid of world due to religion( I'm sure there are people out there are scared of afterlife)

6. I wanted married my crush. Turns out she broken my heart and it wasted 7 years of me waiting for the time I ask her out. She broke my heart by not showing any true love. Just ignore me.

7. My dreams were marry my crush? But she didn't have feelings for me. So only left was my Death where I ended. So what i been doing for months was sleep and workout and watch TV.

So it's really hard and pointless. All I can say they could let me be and let me be happy. And for transgender for my twin sister so I can keep her alive cause we are twins......I don't think it gotta happened......