Is there anyone who will talk to me?

Helloo.. I really need somebody to talk to right now, I feel so messed up. I feel so lonely. I feel like nobody loves me… I feel invisible at school. I have a low self esteem, I really try to be happy. But I don’t know why everything just comes back. I’m really tired and I really want somebody, anybody to care. I hate going to school everyday. I wake up in the morning and I feel like crying. My parents favour my older brother, I feel like they barely care about me. They don’t even care if I get to school or not. The time I really felt needed was when I started dating this guy I really liked. It was like he saved me, he made me feel needed, he made me feel alive again. But I don’t understand… I trusted him so much, he was everything to me… but he left me with no reason why. He said he did it because it’s best for me. He said he would still be here for me though, he said he still cares. Then why does he say mean stuff to me now? He pretends I don’t even exist. Why is he being so mean to me? I thought he said he cared… he was everything I thought he wasn’t. I don’t understand. I feel like everybody’s just using me for fun. It’s all just a big joke. I’m trying to word just how I feel but I couldn’t, I don’t know how. Please how do I do this ? What can I do?

thanks