What the hell is it??

Okay, a couple of years back I had an extremely close sighting of a UFO, no more than 120/125 feet away. I know for a fact what I saw was there and not my imagination. So far that's been my only sighting up until now. For the record, no, I don't suffer from schizophrenia or anything similar but I feel this object is actually watching me. As I'm typing this, I've got the chills and am afraid to look out my window. It began last week and has continued since. From my bedroom, I've been seeing the same kind of light in the exact place during the night and it will stay hovering there for 3 hours and it just disappears. When I first saw it, I thought it was a star. Then I noticed that this light moves and sways from right to left. What's even more odd is I live in the suburbs. Yes, I do believe in UFOs but I always thought this kind of thing happened in more remote areas. As the title says, what the hell is it?