Why Exactly Should I improve my circumstances?

Hi HG community, a while back I (17M) made this post, which should give you an idea of my situation. I write now with the assumption that you have read the linked post.

As you've seen, I'm a pretty incapable guy, and I am beyond absent minded. I never intend to make mistakes and try my damn hardest to try and be a normal and capable person, but it fails. Failing in and of itself isn't bad, and is a natural part of the learning process. But here is where the problem comes in: the mistakes I make come at the cost of losing all respect of my family. I recently made a huge one that was rectified with no issues thanks to my father (I forgot to bring a demand draft to government officials). I know this is completely my fault, and I do deserve the yelling I got. But if the yelling was all I had to deal with then I wouldn't be in this position. Because of my crumbling mental state I have developed a reputation within the family even before the incident. My grades are bottom tier and in an Indian family that basically means you're worth nothing. The pressure isn't so bad but I get more disrespect in areas than academics, which I don't think is very fair, but then again, it's not like I'm not terrible in other areas as well.

I think I had decided early on that my current goal for life was to get a good job so that I wouldn't be a burden and maybe even support the family, which would mean that I would have to study, get in college and all that good stuff. I have opened up to my brother about my mental health issues for a long time and recently my dad two years ago as well, but it is just talked about and left alone, as if nothing ever happened. The treatment I get from them is completely valid and there's nothing I can do to fight back because I'm clumsy, awkward and very easy to walk all over. I was tired of being myself, but after all this, I'm tired of the world that demands so much from me. I'll be moving to the US next year for college and have gotten a few acceptances, but I know this distance wouldn't be enough to change their view of me because that's how much I am responsible for solidifying their view of me like this.

At the same time, I wonder what they hope to accomplish by looking down on me like this. It's not like this treatment would fix me. Maybe some mistakes are just too big to fix. I don't see any point in becoming a better person if they're not by my side, truly proud of who I would become.

I hope this provides all context. Thanks for reading.