Look obviously you had something to say to get resentment from other people or just resent yourself (which you shouldn't). You've spoken your mind (weather it was peaceful or chaotic) is besides the point. Sometimes you have to let rage get your point across. If others have a problem with it then that's their problem. I myself have made it perfectly clear about how I am towards other family members and will break before I bend to indulge them. I don't know the specifics of what happened exactly. But what you should understand is that our true emotions hardly ever come out at the right time.. If they did then the world would be a better place. Instead most people just keep our mouths shut until they explode. Not a healthy thing to do.
Sure, you might feel a great deal of guilt or grief. But maybe that's just what people want to see.
Hold your head up high and shake it off. Every person has the right to say what's on their mind, no matter who it pisses off!