If you want to take revenge, as many has said before me here in this thread, don't do it in a manner that will only negatively affect individuals around you. Most of them likely have nothing to do with your situation. To be honest, by being angry while you ctb and wanting to take revenge, any message you try to send or convey to anyone, including society, will be seen as completely irrational. I know what I just said fucking sucks, but try to rationally explain your anger in possibly a manner of a message. You don't have to actually think rationally while writing this, it must only appear to be.
This would create awareness for others wanting to ctb. Think about it this way: by doing a public ctb which you want to aim at society you are not damaging society at all. Society redirects that attack straight to us, like-minded people like yourself and I. So you would also be affecting us negatively, as people will deem you insane and ragefully pitiful. If not for society, do it for us. Leave a message, make a mark on this world, but think it out carefully so it could actually make a change and contribute to a potentially more pro-choice society.
This is my opinion on the matter!
Of course best of luck and I wish you unburdenment.