Why why am I so unlikeable I will never be like the perfect sister my parents love so much

Why why am I like this why am I getting treated like trash and my sister gets whatever she wants

She is allowed to be loud, weather for being happy, sad or angry. I'm not allowed to even speak slightly louder when I'm excited, I immediately get yelled at and accused of yelling.

She has friends come over non stop and everyone loves her no one loves me.

Our parents always listen to her problems without judgement and take them seriously but won't listen to mine.

When my sister does something stupid they laugh it of and forget it, and when I do something stupid they remind me of it forever no matter how much time has passed and remember it forever and are angry bc of it.

When my sister talks about her problems they listen to her pity her and help her and try to find a solution, for me they just yell at me and say they have it worse and how difficult their life is.

When someone is mean to her they are worried and concerned for her wellbeing, when someone does something terrible to me it's my fault and they even get mad at me and yell at me for it and complain how I either deserve it or they have it worse again.

When my sister does something awful to me they yell at me bc if I wasn't awful then she wouldn't be awful to me...

When my sister cries it's called emotions and they comfort her, when I cry it's called being a brat now I'm a the point where I'm unable to cry even if I wanted to.

My sister is allowed to say whatever she wants and I get yelled at for every single thing I say no matter how small and innocent it is, I can't even figure out why are they yelling.

They look at me disgusted and cheer up when they see my sister.

When she needs help with something no matter how small or huge they immediately help her, but can't even listen to me and when they do they just ignore me and start looking at 5heir phone or again, yell. Also they won't help me with anything even the tiniest things.

When she is sad it's called "she is suffering and she has problems" when I'm sad it's called being an ungrateful brat...

What should I do to make them love me just a little bit more or just tolerate me?