Constantly told to be the family disappointment

21F. I developed a chronic pain condition in my high school year, which completely caused me to topple in school. I've always been an artist at heart, but it was so painful at the time I surrendered my dreams of an art career. Here I am now, fully able to draw again and want to pursue an art career. My parents have never been supportive of me since the moment I gained free will. Between me and my sister, she's absolutely the favorite. Has a manager position at a starbucks, while I was at the time, stuck on my 40th something job rejection. I have a certification in web development, but halfway through the degree, I learned I hated it. Tried all other fields more, minimal luck and enjoyment. The company I'm at now is family business, where they needed a new web developer. I took the position but no matter what I've done, its never been good enough. I'm getting interviewed tomorrow for a UI/UX position at the same job. Due to my conditions, I am scared to pursue a proper career outside. As well, having an LDR of almost 3 years, with an 8-hour difference does and doesn't help.
My family is also struggling with financial issues, so I was implored to find a 4th job (web developer, art commissions, social media assistant for content, and now a seasonal job). I got a fourth job and its been straining. I brought it up at dinner tonight and I'm yelled at for not taking my main job seriously or giving a shit. I told my father my mother implored me for it, and she denied all association despite being the one to constantly push me onto it.
I've always been the target of bullying, abuse, and stress relief in the house as long as I remember. Everything I do is ignored but praised for my sister.
I don't know what to do or how to handle the constant degradation. My boyfriend is my only relief from my household driving me insane, and is basically the only cheer and support I get. Moving out is simply not the easiest with money. I am loosing several hundreds bi-tri yearly from medical bills, then its also groceries and 500 a months while living with my parents. Whereas my sister only has to pay 300, despite making almost double what I make.
I only have one in person friend, and every time I try to make friends, it flops on me. Maybe its the autism and inability to be similar and match what people like, but having no one except them and my bf, constantly going home to be the local disappointment is driving me insane