How do I get rid of this ghost

It's been 5 month now I have moved into my property and I am still having problems with this ghost my child who is 4 says theirs a bad man in his room and I've never seen him but have seen a reflection of a little girl who is around 8 to 10 and just 2 days ago I was watching my tele a horror film lol but at the time my lights started flickering then it went of my child came running trough a minute later telling me the bad man was their now my child is telling me since then that he wants to die I keep saying don't be silly why is he saying this to me he's only 4

Don't let anyone intimidate you about how you are raising your child, I'm sure you love your child all that you can. The obvious problem is that you are being haunted, and demons like to start on the youngest of the family, they (demons) love to destroy families (its a long story). The haunting will continue until you move out or run it out..so since you don't have a clue how to do that (some demons laugh at priests and pastors) I suggest you move out and hope it doesn't follow.

P/s You are being haunted because you have no protection..If you want some, read my other answers.

You and your son need to pray for protection, teach your son to pray every night. Your son is stressed, and confused on what to do, tell your son not to listen to the man if he is bad, tell you son to tell the bad man to leave, in the name of Jesus.....if it's a demon it will leave, even if a good spirit it will be considerate and leave.....ghost type spirits are harder to leave, unless your able to help it, but first you have to help it to understand that it is dead.