Yo OP, I feel you man and I'm in a similar situation. My father is a workaholic who projects. I am the smartest of my siblings and the 2nd most accomplished out of them so from my parents perspective, "I should be" working to the point of depression and be a politician or a rich lawyer with his own big law firm because that means success. The main source of my resentment is my dad bullied me into going to lawschool and that nigga ain't even give me tuition money so I've had six figure debt since 2010.
I have two siblings who have always struggled with school and one of them has been a complete do nothin' for most of their lives. My parents paid for their weddings, cars, rent, helped out with homes, etc... Any large amount of money my dad's given me, he's also gave the same amount to my siblings. So they get to build with that money while I get to throw it into a hole. If I died today, creditors would pathetically be suing my estate for my PS4 lol. I'd say the two funniest slaps in the face was my dad sold a building and promised money from the sale to me. A month later my sister gets engaged to a dude she met off the internet and knew for less than a year. Guess where "my" money went? The second insult, years ago I gave my dad legal advice on one of his buildings and I followed up on it recently. Not only did he not take my advice, but he ended up losing $400k on the building sale. Fool practically pissed away money that could have covered my debt.
At the end of the day OP, you just have to do you and grind. I'm not expecting shit from my parents and realize if they wanted to get me out of that ditch they would have done so already. I just gotta build with the money I have and I don't let it affect my relationship with my siblings. Ultimately it was my parents decision to throw everything at them.
How is your relationship with your siblings? If they didn't do anything to your personally, please don't allow that resentment to negatively affect your relationship with them. Sorry about the current job prospects but you just have to grind and do you. Just grind grind grind, I know law graduates whose first job out of school was janitorial services until they got the job they trained for.