Du i move out?

my dad has been ill for 15 years i find it reli hard to cope my dad has a terminal illness n has metal health people loof at him like he's drunk because he cant walk in a straight line so this 1 nyt him and ma mam were arguing he walked out but wiv his illness we couldnt leave him so they rang the police while we wnt looking for him. then he came home but got put into restbite latley i seem to get the blame for everyfing my boyfriend is 18 yrs old n im 15 everything seems to be goin wrong my mam keeps sayin she wants me out when im 16 but i dno wa 2 du im so confussed. what do i do because they dont lyk my boyfriend but i dnt wna lose him so du i move in wiv him or not?he said i could but i dnt knw wa i wna du anymore im just so confussed wa du i du ?