My dads just said my mums dieing i cant breath i need help?

she's got spomdlosis of the spine.. but shes on loads of tablets she's always sleeping.. and she cant get out of bed.. i really want to help her but i dont no what to do.. i cant live without my mum i cant breath im cryin so much what should i do?? i dont want her to be on all these tablets and morphene and i dont want her to sleep all the time.. i dont want her to be poorly.. i dont no what to do anymore.. im already really depressed about other things & i no me and my mother argue alot but i dont no what i'd do without her sumone please help me, what can i do it hurts so bad its like i'm watching her suffer and im watching my dad suffer its like im flying and looking down on how bad our familys torn apart and i dont like to think about it cos it hurts so bad i dont no what to do anymore i dont want to be here im sorry for the long story and i dont no how i expect you to answer sorry i just i dont no what to do anymore i cant take it