Screaming crying throwing up

I am so upset right now. First thing you need to know is that I'm in the kyudo club at school. The second thing you need to know is that everything always goes horribly wrong for me. It's the end of spring break and I didn't go all of break because I don't know what time it is because, even though I asked, no ones added me to the google classroom. I know that isn't good but I don't have anyone to ask because I don't have any friends. No one wants to teach me which I kind of need them to because I'm an exchange student so I joined halfways threw the year. I've felt like I'm being a burden on everyone this whole time but it got confirmed when one day everyone was arguing saying no one wanted to teach me so I went home crying and didn't come back until the next week. It wasn't even just that one time, like I've heard people talking about me, saying mean things when I'm in the next room over and they think I can't hear them. My host father is a tutor, and he tutors some kids I go to kyudo with and I heard from him that the other students are mad at me for not coming. I just want to cry, why doesn't anyone talk to me? If they wanted to know why I'm not there or they want to tell me I have to come why don't they just say that to me? What's with this game of telephone. I know they all have busy lives and they it's not their job to be responsible for me but it might be nice to get a little sympathy for being over two years younger then everyone else and hmmm let's think, not having Japanese as my first language? School starts tomorrow, I don't want to go, I don't want to see their faces, I want to drop out of the club, but then I feel like everything up until this point will have been worthless. I'm so scared and upset :( Only one person from my school knows about my account on here, I hope she doesn't see this.