What does my dream indicate?

ok so last night i had a dream about myself as an adult,working in a tall office building.of course im only 16 right now.anyways there was a janitor guy that worked on my floor.so he was doing his job on our floor.as he was finishing he was going to be heading back downstairs or on to the next floor.so there was a broken elevator on our floor and nobody knew about it.i didnt even know about it.when i mean broken i mean that (when you walk in an elevator there is always that little crack that separates the floor level and the elevator).well that space was about a few feet off.and the janitor guy was about to jump into the elevator.and so he did.but some how he like fell into the crack but he held on.then someone decided they wanted to come upstairs on the bottom floor.and then the elevator started to move(usually there are big,heavy steel doors that close too)but they were not closing at all.they were still open.so the janitor guy apparently was hanging about a few feet in the air of the elevator tunnel.and his legs were being crushed as the elevator was trying to move down.and he was screaming for his life.now im afraid to go onto an elevator.and you know whats the weird part usually i have these dreams where a would always try to jump across that little elevator crack then i end up falling in.ALL THE TIME!!i sometimes have those dreams where i fall off of cliffs or buildings or just falling out of the sky.but this time i saw it happen to someone else.I DONT KNOW WHAT THIS DREAM MEANS BUT I NEED HELP!!!!!