sorry for your parents, I would personally hate them
I can just tell my story, I have a great fucking dad, my granddad was an alcoholic and lost his job, he didnt care about his son at all, avoided him very much.
my dad got a small house ( not that expensive back in the days ) paid his bills by working almost 24/7 and cared about his health, so he made sure that he isnt drinking anymore, he got him out of that shit. he was 20 at that time. he did all that shit even when his dad didnt care about him
now my granddad loves his son so fucking much and even better, he likes me even more.
now what you can do, is to get the best version of yourself. do what you love.
personally I only made friends in school and at work. never went out at bars or something like that, maybe you have some people you were friends with and could start a conversation by writing them.
do you like your current life? if yes Im happy for you, if not then get up and fight for a better one