The first day or two are the hardest. After that you get to know the staff and patients and be more relaxed. I thought it to be a cross between a zoo and a prison. Some places offer art therapy; that was helpful to me. You usually are pretty busy with groups and activities throughout the day but evenings/weekends are boring. You may or may not be allowed visitors depending on the particular hospital.
Hope it helps and you get your meds adjusted. Hurry back!