I really don't know what to do anymore, my family expects super much from me, but I don't even have the heart for it myself. Now they can't move without calling me a loser and cursing me when the mood strikes, as if all the fault lies with me... what can I do to get out of this?
Hey, buddy, how are you?
When you're overwhelmed by your family's overly high expectations, you slowly find yourself becoming more and more lost and unsure of where to go, I know the feeling.

In fact, every parent is looking forward to their children's success, behind this expectation is their love and blessing, could have given you a boost. But the expectations are too high, the pressure will be counterproductive, so that you feel alive is to meet others, lost their dreams and goals.
So what, the first step is to find yourself first - never mind what others demand, think about what you really want to be and what you hope to achieve. If this is in line with your family's direction, then set a small goal, have a scale in your heart, and make a little progress each time is a victory.
You say that your family always calls you a loser and counts on you when you're in a bad mood, which must have hurt you a lot. But you have to understand that it's really not your fault, but they didn't control their emotions or think from your point of view.
Next, try talking to your family about your thoughts: tell them your goals, what you can do, and how you plan to work on them, while expressing that you understand their concern, but that too much pressure slows down progress, and that you want them to be there with you on the journey, not just yelling cheer from afar.
I hope these suggestions help, cheers!
I'm Tatsuhi, the little ear of the Q&A hall, the world and I love you~