They say when you have problems outside family plays a part but when family have problem then who plays a part..

I feel so fucking useless now...not that I want to shout at my mum..if I talk normal she can't hear then shout but not in angry tone she dulan me..now she has to take care of my father and sis and she herslef is also in no good state..I really want to end this right now...but it's irresponsible of me to do that..but wat can I do?? Lost..standard..