Am I making my life a pity party?

Im trying not to make my life a pity party even though i have alot going on because it is costing me my future.My parents divorced in the beginning of this year and it wasnt an easy one,it was very violent and hostile,my dad was a food father to us but a cruel man to my mother,he let his anger issues get the best of him and it didn't help that he was very controlling even when it came to my siblings and i, when the divorce first happened i felt...relieved, no one in the house had to walk on egg shells there wasn't a set bed time and curfew was generously extended, i was glad until i wasnt i had realized that as much as this divorce came with its upsides there were downsides to it too, limited groceries and oats every dinner, but nonetheless we were happy the house was quieter but at what cost. I found myself mourning the family i once had, looking through our family pictures we took over the holiday while sobbing,i knew this was for the best though,but it really took a toll on me especially when they were together,they would fight,hit each other and yell i hated having to clean the blood stains at 3am so my younger siblings wouldnt see them, it was torture but after that they were back to normal and i got the happy family i wanted back but that was temporary, it always was.life continued like this for 3 years and in those 3 years i got worse, i gained so much weight,i isolated myself from my friends and my grades dropped to the point where i had to drop a majority of my subjects and completely give on my dreams of becoming a doctor all because I let my home situation get to me. Im not in the 11th grade and im going through it all over again even though my dad left the house he still found a way to stir up trouble,my mom recently got a new job but my dad tried to sabotage her and her boss was super upset and she almost lost her job,my dad doesn't want my mom to make alot of money its been evident in his actions he goes around telling everyone that my mother is bad luck because he was really wealthy before he met my mom but he went bankrupt after my dad had left the house he rented out a huge house and got rhe latest Mercedes which was a big suprise because we had recently moved into a really small house because my dad wanted us to "save money" but he had a super big house he said he wanted to get back the lifestyle he had when he was young. I silently supported him because i felt bad for him he has had multiple failed businesses and just wanted to be perceived as this super rich guy,even when he doesnt even buy us groceries because apparently that my moms "job" now it has caught up to him he is struggling to pay rent and school fees and all i can do is pity him,but i feel stupid for doing so in my house im the only one that pities my father everyone else says that this is his karma for cheating bringing stds in our home and fathering many children but i still feel bad for him,hes lost so much weight but his house is stacked with food,he also very petty at some point he thought that not buying us school lunch or getting us to school(transportation) would hurt my mom when in the end it only hurt us. All my siblings plan to cut ties with him soon buy i cant bring myself to do it, hes already old i can just imagine him in his death bed because he keeps pissing people off and turning people against him. I feel like talking to my friends about this but i dont want to make my life a pity party i don't want them to constantly look down on me like an injured dog or gossip about it,i have a court date on Friday im afraid these circumstances will hold me back from my full potential and i won't be able to be the person i want to be i wont be able to apply to a university i dont want to mourn the peron i could've been or what i could've done