U.F.O hovering over trees in Nebraska

I was 13 years old when I had my one and only true U.F.O sighting/experience. It was around 10:30pm when my mother, brother and I had just gotten home from an event. We lived on a horse shoe street which was somewhat surrounded by tall trees (50 feet plus). We had just pulled in the drive way and as we were getting out of the car my mother says "What is that?" and as plain as day hovering about these tall trees was a U.F.O. My brother says that’s a flying saucer. There is no doubt to what we are seeing. This is visible no more than 200 feet away. This saucer length had to be at least 6-8 maybe more diesels long all lined up together. I was amazed at what I was seeing. I just could not believe my own eyes. This saucer hovered over these trees for 5-10min. It had several white lights around the outer part. After 5-10min it began to rise slowly and I mean slowly and with in a few seconds it took off at an angle leaving just a tracer of its path and it was gone. I can close my eyes today and see it all over. I will NEVER forget. I look to the sky all the time hoping to see one again.
 Also, I myself have experience what I believe was an alien encounter. I believe this occurred after the sighting not sure of the date/time but there was light outside. I was sitting in my bed reading a book and my back is to the bed room entrance. So, I’m reading and I feel 3 taps on my left shoulder and mentally I’m assuming it’s my brother and as I turn and look over my shoulder I see a white figure with an oval shaped head and black oval eyes and I freaked out . I jumped up and ran out of my house. I’ve seen this figure described on television by other people whom have claimed of seeing aliens but some people say its grey or some color but what I saw was white. It freaks me out to even think about it. I believe there are chosen people to see the things we see and I feel bad for the people that will never truly believe and know that we are not alone.
Witness indicates that date of incident is approximate.  PD