Psychic, Or Just Coincidences?

I think I'm psychic, but I'm not very sure. Last year for example, I took spanish classes, but my teacher got sick and we didn't have classes for several weeks. I had a weird feeling that he was going to die. And he did. I also have precognitive dreams. Once I dreamed of somebody who had changed schools after sixth grade. He had long hair when he was in my class, but in the dream he had short hair. And when I met him this year (I'm in eighth grade now) over the internet he had the same haircut as I had predicted in the dream.

And once I was going to take a train to my karate lessons I felt very uneasy an hour or so before. And when I got to the trains they were all running late, and some were even cancelled. Then the information disappeared so I had to call my parents so they could give me a ride.

When I was small I once predicted that it would rain even though it was a very sunny day, and a few minutes later it started to rain.

I have been testing myself with zener cards and once I got ten points. I know it doesn't seem like a lot, but my psychic powers (if I have any, that is) are very weak. And not very long ago, I had a dream where I killed myself because of heartbreak. Now I'm scared because it was a very clear dream, not like most of my dreams which are abstract, and it could be a precognitive dream. I don't want to suffer heart break because I have experienced it, AND IT'S NOT FUN, COOL, EXCITING OR ANYTHING ELSE AT ALL! And I don't want to die either, because I have a good family and wonderful friends which I don't want to just leave alone in the world. When I suffered heartbreak, I didn't tell anyone because I knew it would worry them and that's the last thing in the world that I want to do. And if I am psychic, please let me know where or how I can enhance my powers.