I Can See And Hear Somethings. Am I Psychic?

So I can sometimes tell when something is going to happen (like in a book or a real life situation), like the idea just pops into my head and then it turns out to be true. Like I had a feeling one day that my mom was going to have something bad happen to her and then she got into a minor car accident, I felt so bad that I didn't say something before.

Also some times when I close my eyes I can see these black and white image's and then a while later, or a few days later, it see it some were in real life. If I focus then I'll see shape's and pictures.

I also sometimes have dreams that come true, but that's another thing.

I can also sometimes finish the sentences of some of my friends, or say what their thinking-a thought will just pop into my mind and then it turns out to be what they were going to say- (never the less they just stare at me like I'm weird when that happens).

Also seem to hear sounds that other people in the house can't hear (like footsteps, knocks, hushed sighs, running, a cough, etc).

As far as I know, psychic abilities don't run in my family, though I really never asked.

I haven't told anyone (including my family) except for my friend Tiffany who has the same sort of experiences.

I think I'm psychic but I would like to make sure. It would be cool if I was actually psychic.

Please help, I would like to know if I'm truly psychic, and if so how can I strengthen my "abilities"?

Please comment and let me know what you think.

And please be nice.

Thanks, Manda