Is there something wrong with me?

So I know no one is probably gonna see this but it’s my last way of getting any thing out… Lately I haven’t been myself. Like when I hang out with my friends I feel like I’m the most unimportant person in the group and that it wouldn’t matter if I was there or not. I started this new school in January because of bullying and depression issues at my other one. The first few weeks of my new school everyone seemed so nice and bright and happy, now everyone acts like I’m some kind of nuisance and like I should just leave. But some of them act concerned when I say things like ‘ I hate my life’, ‘why am I even here?’, or ‘ I don’t want to be here anymore’ but the majority of them ignore me. I just feel like there’s nobody left I can run to. I tried telling my mom but she just ignores it now. I’ve dealt with depression before and now I feel like it’s happening again. I just need help and there’s no where I can go.