Neglectful mother

So I am very sure i’m being neglected, emotionally, and medically. I’ve been emotionally neglected basically ever since i could walk and talk and do things on my own properly, she stopped caring ever since i was maybe 7. She hasnt been there for me at all when i’ve had mental problems, always said im over exaggerating things, says i dont have depression even though she has papers proving i do. She never takes anything seriously, when i was 11 and started experiencing suicidal thoughts i hoped she would help, so i told her, instead she yelled at me in public saying she regrets giving birth to me. Medically she’s been neglecting me for atleast 2-3 years ever since she got into the “natural healing” mindset. I’ve been begging her to take me to doctors a lot. Whenever i ask to be taken to a doctor she says to think some stuff and i’ll be “naturally getting better”. Thing is i seem to have problems with my intestines and my breathing too. She refuses any doctor appointments, and instead keeps talking about how its all in my head and i can fix it myself with my thinking. And *** now she’s sorta neglecting my cat too. Hes being fed and his water gets changes ofc but medically, shes refusing full castration even though it’s best to have him castrated, we got scammed by a vet and he only had one testicle removed for some reason and mind u hes a very healthy cat, healthy weight, everything is healthy about him except rhe fact his castration is not complete, and my mom is refusing to help me get him castrated. I cant do it myself as i am still more than half a year away from being an adult and adopting him myself. His humping has been affecting my sleep and anxiety and she doesnt care. Im just stuck now. I cant have him castrated during autumn cause ill be busy with school. Also my dad is out of the picture entirely he has nothing to do with us he has a new girlfriend and has moved hours away from us.