What should I do?

I've been shortlisted, for a job. Then my mom called me yesterday, she want me home. My brother don't want to stay there anymore. I am very stressed, i just got back here from taking care of mom, to be honest, I already asked mom, if she really allowing me working, then she said ok. Now, this happened, just bcause my brother being mad, I don't care about him, i never asked for him to do wht he did now. Everything he did is on wht he decided before, he's the one himself who cant lead his family right, why he have to put the blame on me?. What is his right to plan my own future?

But what im being stress now is, i have to start the job on first july, then i have to take care of mom in my hometown until august. What should i do? A big company would not accept me anymore if I didnt make it. Im all by my own now, nobody understand me. The person i thought will, he just choose to think more about sulking, why i didn't approach him, am i not serious? Why i don't want to meet, why i dont wanna talk, n my fault here and there. Its make me think that, he didn't think what happen to me now, what im facing now, am i okay? He just think, what i should do but i didnt. And im tired, every small things will be issues, status, tweet or retweet and likes. Thou ithought  there is bigger things need in concern. My limit, how can he told other girl bout our prob? Its mean, he don't need me anymore, he feel good n comfort on sharings with tht girl. So so be it. I wish a happy couple for them.

Btw, im still thinking how i wanna take care of mum, without losing my job than she dont wanna stay with me in kl, n my sister and brother still in school, and i have to face my two dumb brothers. Who are so over the top of themselves.