What should i do? Bear this situation.

I habe started a food business in some other city from where i belong . But my family is against this all the time . They were forcing me to come back since the day i went there . But now i returned due to my grandmother's illness . Now they are saying that i should not go there again . My sisters says that i am a shame to my family . Their husband avoids to talk to me . It was my dream , i was preparing for it from past 5 years now i am soo confused what to do . I dont know whom should i listen , family or heart . I want to quit my life but i cant cz my family will be destroyed if i'll do anything like this . Please help me My confidence level has been shattered . I often shouts at people w/o any reason . I am getting soo much irritated that i cant bear this situation.