Ive tried to astral travel many times but with no success. But I actually have managed to Lucid dream twice, but havent been able to since (maybe since i havent been trying. lol) .. But two things have worked for me. Repeating as an affirmation before you fall asleep. " I am an astral traveler. I will astral travel." .. nothing negative such as "Im trying to astral travel" .. and another thing called .. Reality time check. Very often during the day, check your watch and check if its functioning correctly, as they say if you look at your watch in a dream and then look at again, it'll be a different time.