Anger

How does one deal with anger towards another family member. how does one calm themselves when angry with someone that they love and care for? please any one who can help with this.I feel like shit right now with my brother, he gets mad at anything that he doesn't like, but he doesn't appreciate the fact that I take time, my free time, to clean after him to cook for him and do his laundry. I am trying so hard to calm myself down but I can't I hate it when he is like that. God please help me not fell like this any more........PLEASE