Kim: First of all, it's not true that you "only have to pass fourth year high school" because IF EVER you get wait-listed in some school or IF EVER you don't pass the school that you wanted, you need to appeal, and they do consider your final grades (correct me if I'm wrong, but that's what I know). But regardless if they do or don't, do you really want to risk it? Second, if you're "trying your hardest" but still just want to get by, I think you're not really putting your best effort. I think you should always do your best in everything that you do. Just think about the character you're building and showing to everyone else.
Reign: I know all you want to do is just get through senior year with passing grades, but try to aim bigger and better. All you have to do is try a little harder. I know it's difficult but with just a little more push, you can achieve higher scores if that's what you and your parents want. But don't beat yourself up when you have relatively low scores. I mean, yeah high grades can help you get in a good college but they don't define your capabilities.
“My sister is super hot. A lot of guys notice that, even my friends that are girls. It infuriates me on how they always talk about how pretty she is. How we don’t look a like. Someone even had the nerve to ask, ‘She’s pretty, so what happened to you?’ My sister did nothing wrong. She got good genes. But goddammit I can’t help but harbor some dark feelings towards her, now can I?”
Kim: I understand your predicament, since I live with two older sisters. Just like you, I've always been compared to my sisters, whether it's about personalities or looks. It's okay to feel like that, that's just normal. I won't tell you to not listen to those people who say you're subpar (in any way) because you already know that (you really should). If you know you're good at something, then focus on that. I think looks are the lowest criteria for judging someone's beauty.
Reign: I think it's quite ridiculous for your friends to compare the both of you because you two are different people. Beauty is subjective so don't ever think that you're less good looking than her. Everyone's beautiful in their own way. I understand it could get frustrating that you're seen as the "less attractive one" but when people start to judge who you are as a person based on that idea, then those people are just very superficial and stupid.