How to get rid of anger without annoying family?

I'm really angry because I have worked so hard on a project for two weeks now and at the last minute it has been cancelled due to someone's stupid error. My family are angry because I'm angry, I cannot take the anger out on the person causing the problem or I won't get another chance at the project. Apparently I'm driving my family mad, any suggestions? It is late an night and everyone else is in bed.