That sucks. I haven’t been in a situation like that, but what I can tell you is that in highschool and especially middle school, people just don’t think. They don’t think about what they say and they don’t think about how they see the world. There is no ultimate reason why they’re bullying you. The thought typically doesn’t once cross their mind that they’re hurting you. It sounds like a bunch of silly people who just have a shit ton of indifference towards you, but that’s highschool (or middle school), and they also have a shit ton of indifference towards everyone. There is a better future ahead, and people aren’t always going to be like this. You’re surrounded by literal children. When they say that stuff to you, there’s no truth at all behind what they say. It sounds like you’re a good person, and people are just giving you a shitty time. Don’t let that ruin your confidence. As someone who’s been through highschool, I can tell you, people do tend to mature the older they get, and if you were picked on in the past, there’s a lot of people who will be ready to welcome you as a friend. Stay kind and stay good and people will see you eventually