Could I Really Be Psychic?

I'm looking for answers more than anything, I'll tell you my story first and then could you tell me if I could be psychic or if it's just all in my head?

I think it was last Christmas or the Christmas before. The pub we go to had this fun Christmas market, a tarot card reader was there to give readings and I decided to have a go. After the evening had all finished and everyone was packing we got talking about the experiences my sister has had and she said that my sister most likely has psychic ability. We then got talking about me and she said I do but not as strong.

In a way I shrugged it off as nothing and got on with my life. A few months after that I started to hear my name being called by a female's voice. I ooked out the window and no one was there. I got freaked out a bit but thought nothing of it. It has happened in the past. A few more weeks passed then I started to see things move in my room, not like books moving from one place to another, but as if thin air was moving. As this was mainly during the night I'd go down to mum's room and wake her up as a comfort thing, like most 4 year olds do... Not most 16/17 year olds!

I ended up having to have an operation on my foot to remove a boney lump so I couldn't really run down the stairs with a cast on when I got scared. One night I had just managed to fall asleep after the pain was controlled and got woken up by a blue light. I looked in the corner of my room and in the blue light was a man smirking at me, really scary! So yeah naturally I screamed down to mum, by the time she ran up the stairs he just turned and walked through the wall. Took me forever to sleep properly again.

Since then I've found myself waking up to seeing a little girl by my drawers doing the action as if to open the drawers and peek in.

I constantly see this girl, however it's not like a solid shape, it's like I see the air and then see an outline and then movement. I don't "see" other people, however I do "sense" other spirits around if I'm to see anyone else they tend to do as I ask and come into my dreams which is a lot less scary.

I have no idea what this little girl's name is and, unlike my sister, I cannot hear her speak so we cannot come up with a conversation. I think she's realized this as when I ask a question she mainly shakes or nods her head now. My sister has said she can sense her and she's mainly attracted to me as she wants to protect me over anyone else in the house.

I'm now 18 and to be honest, I'm starting to get really freaked out. Especially as now I'm hearing movement in my room. Also since I've finished school I've not been stressed about school work, yet I'm having little kiddy tantrums like I did when I was stressed but for no reason at all!

Could this be a start of psychic abilities? Ok so if it is I'm a lot weaker than my sister but could I generally have the ability to "see"/sense spirits and possibly sense what this little girl is feeling?