Am I Psychic, If So How Do I Control My Visions?

It started about 2 years ago when I had my first vision. It wasn't a long vision, it just lasted a couple seconds and then a minute later it came true. We were playing Dodge ball and in my vision I saw my friend get hit with the ball. Then Like I said a minute later it came true. I have had other visions like this but I only get them every month or two, and I want to know how to control it to get more visions. I also have had other experiences. Like, one day I was with my mom and I wanted to go to the store. I thought that in my head and then my mom asked me if I wanted to go to the store. After that happened I tried to "send messages" to my other family members and it worked. I also have had another experience, healing. I have gotten hurt a lot before and when I do it never hurts me. I can recover very quickly. So one day when my cousin got hurt I tried concentrating my energy on her, and then she said her wound didn't hurt anymore. I have tried doing that to other people when they get hurt and most of the time it works. My last experience is seeing auras. I one day was in the house with my mom, and I saw colors coming from her. I just thought it might have been the lighting in the room. But them when we went out in public I tried to concentrate on the people around me, and I saw colors coming from them too. I have looked through some of the stories on here, but none of them are like my experiences. Anyway I have been really confused lately and I can use all the help I can get. I really just want to know how to control my visions so I can have more of them and help other people. I have always thought I was crazy until I found this great website. One more thing, I have read on here that some people believe they can control an element. If this is true I think I can control fire because first, I am always warm. And second I lit a candle the other day, and as I stared at it, it moved. Anyway thanks for all the help.