My parents got so mad at me today they threatened to send me to boarding school

I don't think people understand me, for example I'm scared to tell my grandma that I have to take anxiety meds because the one time I told her I took them she told me I didn't need them, I mean i get it on the outside I'm this happy af person so I can understand why she thinks that, but I pains me too see the people I love not understand me, and it's because I'm too much of a coward to tell them myself, I've contemplated telling them I depressed over and over again but I can't bring myself to do it, and all I do at night is sit in my room and cry till 2 am and that's why I'm so tired in the morning , and I mean none of my friends irl except angel gets me so I can't talk to them about it

Today I contemplated killing myself, and I kept saying nobody would miss me and nobody cared, but I got over it and took a nap

Today I had been crying and my brother came up to me and said "you look like you've been crying all day, oh wait you have, scrub, and I know he was just messing with me but it hurts,

I don't know what to do with myself anymore