Psychometry

I posted my experience of visions on this site (entitled My Visions), thinking that I was having random experiences that might be psychic. Ever since that day, it feels like my abilities have grown.

Recently, I've experienced a growth of psychic experiences. First, my precognitive "twinges" have grown stronger and more frequent, and I can finish sentences more than I could before. Also, just recently, I unknowingly used psychometric. I borrowed a friends pencil in class, and as soon as I did, the bones in my hand began to hurt and I felt anger. I knew it wasn't my anger and I almost felt as if it was coming from the pencil. I closed my eyes and saw in my mind's eye the kid I borrowed the pencil from getting very mad and yelling and punching things. I thought that I was just looking for something psychic because the kid has always been very subdued and quiet. I am also in PE with him, and that day after PE he was VERY angry from nothing, and began to yell and punch things like in what I saw. No one knew what was going on with him, since like I said this was so unlike him.

I also got hit in the shoulder by an invisible force, maybe a spirit. I was sitting in class and all of a sudden I felt something hit my shoulder, hard. It was as if a finger just slammed down on my shoulder, and there was no one behind me who would do that and we were all taking a huge test.

Needless to say, what is going on and what can I do about it?