Just had a re-read of this as its comedy gold.
But your 29 years old, still living at home and sleeping on the floor of your dads bedroom rather than your own bed (which you've only had for the last 16 years, so you didn't have a bed till you were 13?) because you get scared from horror documentaries.
And your mad at your sister because she wants the money thats shes owed from your dad and is suggesting you sleep in a bed rather than your Dads bedroom floor.
Mate, you have a lot to sort out, nothing about this is normal, quite frankly i think you need some support or counseling, it sounds like your sister actually might be a rational person as well maybe listen to her suggestions.