im 17 and im turning 18 in 2 months, 
I have a small family, My dad died when i was 2 years old from suicide. I dont have any contact with my dads relatives. 
My Moms side is very separated, mostly dead relatives. Mine closest relatives my grandma and my great grandma died when i was 12 from cancer in the same month. 
I have 2 brothers, one step dad and one mom. My first brother was okay, because he was actually planed, but the second one was  not, I took it really hard, because my mom was my biggest support, and it all went away, all attention and love went on him,Family nights, family trips ended. I was all alone, I lost my biggest support. Home did not see like home anymore.  
If me and my mom had a fight they all would turn against me. 
I started to isolate myself, there was no more room for me.  I was so angry at her for giving birth to my brother, i hated it.
And now again, shes pregnant, not planned at all, and im feeling so left out, i feel like im just gonna get kicked out, forgotten, abandonent. They all mock me and teasing me and saying «Arent you gonna move soon» And i just feel so worthless.  Im not capable  of working my ass off to have money enough for a apartment, Im getting tired and exhausted of doing absolutly nothing! Im super stressed and i absolutly feel like my Hole life is falling apart, i dont have any friends who can support me, No relatives left, No savings in my bank account. I dont know what to fucking do! 
Everyone just leaves, Im not ever good enough. Fucking hate my life.