It's funny how, if you get too excited-or-giddy-or-anxious-or-impatient over something you want, God will remind you that it really isn't that important, in the big picture. The things of this world aren't really that important, Regarding Eternity -- if you will.
God loves to keep His childrens' eyes on the prize. It's up to us to be "outside of ourselves" enough to realize that the frustration we feel after our plans are thwarted (or delayed) is selfish, and not unlike the frustration a 5-year-old feels when his father swats his hand away from the cookie jar.
Man, I'm always learning. What a Teacher.