Being afraid of (new) people

I honestly am very afraid of having any social interaction at all, even greeting is a challenge for me, I greet when I'm confident enough sometimes, but others I don't greet, because I can be ignored or think they'll judge me. Yes, even saying a hi is difficult. I don't really like other people thinking I'm rude for not greeting, but words or actions do not come out. Good thing, is that even so, I've improved, but just a little, because not so long ago, like a year or so, I used to hyperventilate and really have anxiety attacks, for what I consider some trivial or not important things now, like a presentation or meeting people. Now I just...want to vomit? Not out of disgust of course but out of nervousness, but I'm afraid that maybe I'll just explode and have another one of the things I had a year ago, and I'd feel embarrassed of that too. I can't even eat properly, eating in school is a little hard, as there's too much people in there and I feel like there's no space, also because I don't like feeling like I'm watched while eating, because I feel everyone is judging even that. I have my friends at school, but they're just shallow, I just greet them and later on stay at my phone, but that is my fault I guess so. I don't know where to search, and it's hard because they speak a language I don't. I'm too afraid of being seen as someone who wants too much attention or I don't want to bother them if they're busy, so when I'm just about to text them, I end up deleting it. I don't really have friends in my classroom, I greet two people that greet me first and I tried talking with someone but I was too embarrassed to go back at it again. I'm the only "female" (I'm a trans man btw, just that I don't feel confident to tell anyone because I don't know them and yeah) And I feel if they discover that I would be more and more judged, and really being not taking seriously as if people think being a man is to be strong, funny and outgoing, I'm just shy, and I am seen as delicate, and I hate that, I really do. I don't know how to initiate a conversation at all nor continuing one, worse in a language I don't know. I miss being in my country because I had friends in there, now I have to start from 0. It's been like 9 months now that I've moved in and I'm still afraid, and I don't really know the language. I just am very afraid of change, but I have to deal with it and survive. I'm scared that if I still are like this in a future, then how am I supossed to work? When mostly a lot of works is about teamwork and communication. I am very worried about the future, and I know it's not the same being a student than a worker, but still, it bugs me out. I feel I do more mistakes than others. I just am very afraid of what others will say.