I wish I knew. I've tried self reflecting and asking myself if there's something I do wrong, but I don't act strangely. I've tried saying hello to them at the start of shifts, asking them how they're doing, attempt small talk and it seems they freeze me out. They don't respond to that even though it's a very clique-y culture there and everyone seems to be buddy-buddy. They talk to me like I'm a dog, a slave or an undesirable person and it leaves me confused, stressed, depressed and generally not enjoying my life or looking forward to it because they make my job and tasks so difficult with direct harassment. Schools have cliques there too, but there's a stark difference between the atmosphere between school and work. In group projects and class discussions, I'm respected. At work, I am not.