Is it normal to hate your family

My family didnt beat me as a child or told me whats right or whats wrong they left me on my own and told me never mind ur dad ll pay for ur college..however I fucked up real bad and pulled my shit together at last and got into private medical school and dad paid for it, me and big sister were the fucked up in this family due to no family supervision and mom and dad hate on us on that day for being complete bitches when we were in the age from 14 to 16 , dad is saying if it wasnt for u we would still had alot of money..they moved us to a shitty low school just because its near and he wont have to pay for bus or drive us..just as I told we fucked up and he ended paying hell shit alot of money...now my young sister she is still 16 years old mom is letting her do everything even when I tell dad he says tell her im ok with what she is doing and she ll grow up and let go of this things..she is a complete bitch and a liar not like me at all and the worse is my sister is helping her do all her shitty stuff..I figured out all shit mom and dad dont care, my sister is helping her..she wont go to a decent college that way.back in my days if you got a B in high school u still can get into medical school with money..now u must get an A- to go there with money and an A for a scholarship..with her shit she wont be able to get into any place..and dad and mom will blame the shit out of her for the rest of her life..now I am the bitch to try to convince her into the right way..everyone hates me like im a non merciful creature..what the fuck is mercy usful for if u will be blamed for the rest of ur life ? Im suffering from depression from all the blaming and all the shit I ve done when I was 16....what do i do ? Stay out of it anyways I completed my life or beat the shit out of her and she will appreciate it someday