Real or Just Imagination?

Hi. I am very new to astral projection. I have only been trying for about a month. The only 2 times I feel I've been close, I've experienced the following: 1: I went into a hypnogogic state, and I think I felt vibrations. My eyes were closed, but I could see the ceiling tile above me. It was very bright and vivid. I then awoke. 2: I came closer this time, having very strong vibrations. My heart then started beating very fast and strong. I felt it was going to come out of my chest. I felt it, not just heard it loudly, as I've read about sometimes happens. It startled me and I came out of the state I was in. Am I getting close? How long does it take to achieve an O.B.E.?