Problems with my sister

I am . so pissed. my sister is the laziest person around and my parents don't care. my parents use to have us go to a private school and I got really good at math. when we moved we had to go to a public school and so I was a few grades ahead in math but my sister, who should've also been ahead, stayed in the same level due to laziness at school. last year sucked. my mom told me I would be grounded if my sisters grade didn't improve! this drove me crazy because I shouldn't have to manage two math grades with mine being as hard as it is. she improved in grades just because she actually turned in her homework for once. she will constantly abandon summer chores and guess who gets punished when she does? freaking me. I mom will be like oh why didn't you make sure she gets her jobs done. you lose your consoles for a month. so once I did a chore she abandoned. my mom came home and I told her what happened and she said, at least someone did it, letting my sister off the hook and I did extra. my sister will always tease my brother or hurt him and when he tells my mom she tells him to stop being a baby. he's 4 btw. on the other hand I'll be playing with him and he'll trip or something. I get grounded and punishes even when my brother says I didn't trip him and it wasn't my fault. my dad is not perfect either. he will constantly bash me insults like ugly or lazy. my hair will naturally stick strait up making it look like it's a helmet. he will say I am shameless and don't care how I look when my sister on the other hand doesn't do her hair and it looks like a rats nest. all my parent tell her are stuff like don't you feel ashamed and that's it. I get punished for being lazy and not caring and honestly, my hair looks normal and fine. I'm not going o meet the president or anything. I will always get told I'm lazy and my parents will yell at me for spending too much time on my phone. my sister spends 3x the time on her Tablet than I do. my mom will sometimes cry when she looks over my homework and I "don't do enough work". she'll flip out and get mad saying she wasted all the private school money on me. I'm freaking one of the top at school and I wasted all that education? my sister will fail and they don't care. another issue. my parents don't give a shat about my interests. I'll tell my mom about a new dlc for a game I like and she'll be like, oh that's all you spend your time on huh go read a book or something. my sister meanwhile will tell my mom about some minecdaft youtubers fictional world and my mom will act interested and say stuff like you should be a minecraft youtuber! what the heck! I want to get a programming and business degree and somehow wanting to be in the video game industry when I get older is a waste of time! one last story. I got my ps4 banned because one time at school I tried out for a team. I messed up so bad on the first day that I got sad and felt like a fool. on the way off the bus I meet my sister you starts annoying me. I tell her to please not talk because I needed a calm walk home to help with my depression. my sister then starts being more annoying by saying stuff like what if I want to talk huh lalala. I got so pissed and I said I swear I'm gonna yell at you in front of everyone if you don't shut up. she then ran off crying to my dad that I threatened to say the fword and my dad then gave me all her chores and grounded me and took my ps4 to his closet. I didn't even get to tell my side of th e story. they just assume like always that this lying spuck is telling the truth. the same person to lie about grades, homework, chores, etc. in the end please tell me how to work with this. I'm depressed and sad and my parents will constantly tease me for crying and getting mad every time I g r it bad for my sisters mistakes and wrongdoings. the only thing that keeps me going is looking forwards to see my friends and a girl I like once a week. plz help me