I prayed that one day my family will be sitting on a landmine
That sounds terrible. Why would you wish that?
I'm saying this because I hate them. Just let me be happy.
But this is your family that you are talking about. It is wrong to wish death or harm upon them.
I have no problem with dying and i'm not even saying that it will happen.
I can understand that you don't really want your family to die, but I wonder why you would say such a thing. Are there problems between you and your relatives? Do you think that talking to someone about this would help you to figure things out?