Want to experience it again

I am new to this site, and have actively been seeking a forum for astral projection. I am a 46 yo male, who during my childhood, teens, twenties and a little in my thirties unwillingly have left my body during sleep. I have in a long time just turned my back to it, but I have found out, that other people experience the same thing, so I want to explore this further. My experiences have been during sleep, where I suddenly feel awake in my mind, but my body still sleeps and I can't move it. A tingling sensation starts in my body like it is filled with tiny bubbles and I hear a sound like when and aeroplane flies through a cloud. Often then I left my body often with a dramatic "fall" out of it down on the floor, where my astral body would hit the floor and jump a little like a balloon. Sometimes I would rapidly float to the ceiling and hit it. I never saw my own body, though. Often I would panick when this occured and I quickly came back in my body. I am perhaps a nervous character, and therefor this kind of experiences scares me a bit. However, now I want to learn to master it.