How do you get away from narcissist parents

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So I have been living with my narcissist parents till now from 27 years . My mom has abused me physically (when I was a child) and emotionally and mentally (now). I have been actively trying to get out of this hellhole house but can't seem to find an opportunity. I have tried to tell a trusted adult but all of them are snakes and narcissists themselves. On of the adults I told when I was 11 years old just scoffed it off saying it happens in every household and I'm overreacting. I never trusted someone else again. So i want to find a job and get out. But the job I got payed less than a month's rent in the city and I had to live with my mom and then my mom would ask me for the whole salary so I didn't work . Then I tried to find a scholarship but I'm getting rejections because it's competitive and I didn't study much because my n mom has sabotaged everything from when I was a child. I also have a 5 year gap in which I didn't do anything because I was so depressed to even get out of my bed . Now I'm just living with my mom who soon will get me married to a stranger and "settle" me forever. She also trauma dumps on me almost everyday and I'm sick of her , in sick of everything. I just want to get out any way possible. Also my country isn't that safe to just go to another city . Any advice is helpful