Nothing to fear really, because it is there to keep you safe from harm...though the experience and surroundings are different and at time uncomfortable, there's nothing to fear.
Oh and another thing--it may take your psychiatrist (or the one assigned to you) a few DAYS to get your medication prescription to the ward, and another day or so to come in and see you. It feels like wasted time, but really it gives the patient a chance to square away and possibly not need all the extra hoopla.