How To Help Spirits That Come Via Dreams

I guess I can start off by saying that I have been able to see spirits since I was about 12 years old. I have seen shadows, and felt spirits most of my life. I frequently have dreams about spirits and places I have never been, and to be honest, they tend to scare the crap out of me. I have had dreams of places and the spirits that reside there. But most of the time I can about guess what they want or need help with. But there are a few times when I feel helpless, because only being 16 years old, it's really hard to help them. A few weeks ago I had a dream about a historic bed & breakfast, before it was historic. A few family members & I checked in. The old woman gave us the keys to our room, I remember she had a limp, white hair, she looked at me, very concerned looking. And when I was about to leave the old woman said, "you can see them can't you?" I pretended to act surprised. But at that time I seen a very young little girl run past me and hide under some construction wood. The little girl couldn't have been older than 3, she has shoulder length, tangled hair. She was only wearing a long shirt, no pants. She was hiding from something. Then there was a very mean, and angry spirit. I know that however he died, it was associated with water. Because all I could see was my father acquiring deep cuts all over his body, and my aunt and uncle being drowned. I could not physically see the man, but I know he was there. I walked into the living area, and called him out, I told him that he was too leave. I felt dizzy, and suddenly woke up. I am very confused about this dream. I know this place needs help, but I'm only 16 years old, I can't help. I just need to know that they are telling me.