Issues

So at home Iv been having some issues my family was quite a normal family but over this past month my mum and dad got a divorce and my mum has started to go off the rails it’s making me overthink and I always feel down I have this pit in my stomach all the one where I feel sick and nervous and I’m unsure why I don’t know what to do and honestly i don’t feel as if I can speak to my mum cause every time I open up to her she laughs in my face and tells me she doesn’t care and tells me I’m looking for attention when I speak to my dad I feel like he is there but he tells my mum everything and she thinks I’m playing my mum and dad off eachother which I’m not doing at all I just hate being at home, I have college and a social life that I’m not paying any attention to atm and I hate it ... sorry for the long paragraph it just feels nice to write it all down any advice ?