Dreams

I have a lot of reocuring dreams about things that have hapend in my past. Before I fall asleep I almost always play over how i predict the next day will go in my head, I never can remember what I thought about the prior night so it usually doesn't go how i planned it to. A few years ago I had a dream about an old abandon train car in the middle of the woods and it looks really old and creepy, then I had another dream more recently probably a year ago or so where It was the same train car, same woods, but It was clean and I couldn't tell in the first dream but the train car was red. I had cleaned it up and the inside looked really cool, There was a bed and all sorts of thing. Usually before school starts I usually have a dream where I am sitting in class and every time the teacher says anything important its like the teacher from the peanuts, all I hear is "Wha whawha wha wha" It usually scares me that when she says her name or any important information I should probably know I can't understand what they say.