Every night I keep hearing bangs on the walls and I keep hearing noises and stuff moving around and voices saying get out or die and I hear giggling... I don't remember a thing but my friend told me that I have gotten possessed and I thought she was crazy till I saw a bite mark on her from me and I get pushed and triped and the TV turns cannals without me there valume turns up and down and all this stuff happens when I'm not home... what is it? And what does it want?

IF you're serious you need to get checked out by someone in the church (doesn't matter what denomination) who has experience with this sort of thing. Demonic activity is more common than most people think. You're describing a rather serious case and you seem pretty nonchalant about it... curious.

As far as the TV goes. I have to ask.. do you have any crystals hanging in or near windows or and stained glass? Anything that can reflect light into parts?

How often do these things occur? Where do you hear this voices/giggling the most?

I hear these every night last night it got worse

What happened last night that was worse than other nights? Does your friend tell you this has happened many times... or just once (the possession)? What is your religious background/experience?