Hey,
I can relate to this so much.
My dad’s been drinking aslong as I can remember (I’m 31). He has chirrosis, seizures, can hardly walk plus lots of other things but still wants to drink.
I feel bad for my mum who has to basically be his carer because of the drink. One minute I feel angry at him and want to never see him again but then I feel guilty the next minute.
I hope your dad gets better and hope you, your mum and sister get the help and break you all need.