I can't wait until my grandmother dies
Why would you say something like that?
She is the worst to me, I always want her to die.
It is okay to dislike your family memebers, but I think that you are crossing a line there. You should never wish death upon your loved ones.
She's become a burden, I'll find a way to get her removed.
You should be careful what you say. If she does die, you might feel guilty or have regrets over feeling this way. I would try and forgive her while she's still alive so you don't carry this burden.