Welcome to the forums Baeyuh, and thank you for sharing with our online community.
Please know that you've come to a safe, non-judgemental space to talk things through and our community is here to offer as much support, advice and conversation as you need. We're sure that a lot of our community members will relate to these feelings and hopefully some of them will pop by to offer you words of wisdom and kindness.
It sounds like you are really struggling with the school you are at for a number of reasons. Its horrible that people at school treat you differently and that you feel alienated from them and not included, that is a very painful thing to go through.
If you feel it may be helpful, you are always welcome to get in touch with Kids Helpline
. They are a confidential and anonymous, telephone and online counselling service specifically for young people aged 25 and under. Their number is 1800 55 1800. We would really encourage you to speak to one of the counsellors there about how school is effecting you at the moment. It could be really helpful as its very hard to be feeling alone with such feelings.
Also, If you are interested in more ongoing support, we would also recommend getting in touch with an organisation called Headspace
. Headspace is an organisation specifically for young people aged 12-25 and they offer a wide range of services including group programs which are a great opportunity to meet people. They also have a group chat on their webpage.