What's this dream supposed to mean?

I don't smoke weed but I am going to try it this weekend. Well in my dream I am smoking a joint in the woods. When I got high I felt something chasing me. It was like a ghost or something. All of a sudden the song "Paranoid" by Black Sabbath came on and I started to run wicked fast. I finally get to my house and sit down and zone out and relax and take a nap. The next day in my dream my parents tell me I'm getting a horse for my birthday instead of a car (I know random haha). I loved that horse and would travel everywhere with it. I find out though that the horse was stolen. The guy who we stole it from pointed a shotgun at me. My horse then ran away with me on it and the guy missed me and shot the horse in the ***. I started to cry. The next day I get high again and the guy found me smoking and was going to call the cops. He did and I ran away again with copps, the guy that we stole the horse from chasing me. I lost them and made it into my house with my parents waiting for me. They were dissapointed and said that I got to pack up my stuff and leave the house. I then felt that everybody hated me in thw orld and it was the world against me. I decided to say srew it and I decided to isolate myself from everybody. In the future it shows me as a 90 year old living in this isolated house but being perfectly content with my life with a wife and that we said that I don't need other people in my life. The wife is an ex-girlfriend of mine. What is this supposed to mean?