Can I Talk To Spirits?

A few years ago my mom went to a physic, she never really told me what the physic told her but a few months ago she told me that the physic told her that I had a gift but when I went to school I closed my mind to it. We were pretty sure we knew what the gift was. When I was younger I always used go to the door and talk to a girl that died in a car crash with her grandma. This is from what I remember my mom telling me I'm almost certain that's what happened and I don't want to ask my mom again because I'm too nervous. The only part I'm not sure about is the grandma but the girl was definitely there. I'm not really sure if I'll ever be able to do it again but it seems weird to just get rid of something I was born with. I don't want to tell anyone I know about it because they'll probably think I was joking and one of my friends even jokes about talking and seeing ghosts (it's actually not really joking it's use lying). I know my friend is defiantly lying about that because he just looks a air and pretends to be talking to someone and from what I've read before it's usually the spirit that comes to you not you coming to the spirit. I'm wondering if I can still talk to spirits or if I can try to "open my mind" again. I'm not that scared but it still creeps me out a bit. I'm also only 13 and I've moved out of the house that I talked to the girl in. I'm really not even sure if this anything since I've read some peoples story's on this site and they've had a lot more experiences that me but I still want help with finding anything out with the one experience I've had.