I'm no psychologist (I don't even play one on TV!), but somewhere, Jung said that it is normal to have dreams that are full of significance toward the end of adolescence, early 20s. I had such an experience; I haven't dreamed anything that seemed so personally meaningful for several years now, but in my early 20s I had them frequently.
I've also had a few dreams that "came true". They were never about anything very important and I have no idea why I received them. It just happens to people sometimes.
I'm sorry I can't tell you anything about what your dreams may mean.