Welcome to the BB forum, I am so proud of you that at a time when you are feeling so worthless and over it that you have remembered the brochures, I am so glad that the school provided the support and handed out information that has brought you here. We do care, very much, you are not alone and unfortunately your story is not new or unique, there are many young adults going through the very things you are, which is heartbreaking. You are absolutely not a freak show and even though the friendships have not flourished, you are capable of meeting and making friends.
I care about you and I am here, this is a safe place that you can chat, and share, as much or as little about you as you feel comfortable to. I will sit and chat and help you as much as I can through this time.
I can't relate to how you are feeling, I didn't experience this, however, I am going through it with my 15 year old son and it breaks my heart. So I am going to tell you some things, you have no doubt heard before but I will try, because I care. Can I also suggest to you that while it will make your parents sad, they are there for you and will want to shift the earth to help you. Talking does help. You don't have to go into huge layers as you have here but perhaps share some of how you are feeling so that they can hug you and hold you and help.
So I have got my son into doing some volunteer work, at a place he loves, so he is doing what he loves and is in a new environment. The focus is the tasks he is doing and that brings him joy, also giving back to the community gives you a massive boost, so both these things in themselves makes one feel really good. The next bonus is that the people who are also there are there for the same reasons you are, so there are common interests and therefore friendships form. So what type of volunteer work does a young person do? Well depending on what you like it could be at a local vet if you love animals or even an animal shelter. If you love books there is the library that you can go and help out, the Salvation Army is another wonderful place to start too, they have all sorts of things to get involved in.
I think what I am trying to say is that if you immerse yourself in what you love, you will be around others will common likes and interests and friendships are easier to form. School is horrendous, and I am so sorry for every child that is bullied and excluded and hurt at school.
Huge hugs to you and hope to chat some more