These kinds of prophecies are much easier to make than they are to deal with if they don't come to pass.
Bottom line: If it's God, it will happen. If it's not, it won't. I don't plan my life around prophecies. I have heard plenty of them. Some were God and some weren't. I'm more concerned about the written word than I am about a "thus saith the Lord" statement. I take pretty much everything with a grain of salt. The longer you're around the more you see and the better you get at not going after everything that says it's of God.