First Bad Obe

I am here to look for advice. I am about 23 years old and have been experiencing OBEs for about three years now since I have been seeing my psychic. My first major experience was the most amazing experience ever. About 6 angles came down and brought me up high high into the sky to see my recently passed father where we sat and talked for a good amount of time. Other than that I have only experience other times of me flying around in different types of places. Recently though I had the worst experience of my life. I was in college with my friends and after figuring out a sleeping arrangement of my friend's bed being right next to me, I started to vibrate uncontrollably in my dream and in my sleeping body. My friend woke up took me outside where there was an ambulance and brought me to a radiation field where I stood in until the vibrations went away. I then went back to sleep with my friend next to me (in my dream). About 10 minutes later the vibrations started again more intense where I could not say a single word, could barely make a noise. I then went to follow my friend out the building as before. Although this time she disappeared and I panicked while I looked for her. I then saw a small dark looking girl who then seemed to take control of me. I then felt as if I was thrown out of the building and fell and fell until I realized there was no stopping me as I felt I had to prepare for. I then told myself, stop stop, let me down, let me down right now or I will go back to to the radiation field, put me down now. When the person finally put me down I slowly woke up vibrating the most I have ever in the past and very frightened. Is there anyway to stop this type of OBE from happening again, and should I be scared, because I most certainly am. Thanks for your help.