You can't depend on tomorrow

What's that verse that says "don't worry about tomorrow, today has enough problems of its own" ?
I've just realized since being out here, how much I depend on my future in order to feel secure and happy today. I day dream all the time, about how God will make us a part of his story, where we will live, and so on. And while there is nothing wrong with daydreaming, sometimes I think I live so much in the future that I miss what is going on around me today. Well wake up! There is nothing dependable about the future, it could all change at anytime, and my little list making heart doesn't like it one bit! God has really shown me this while we've been out here in the woods contemplating and still not knowing what to do next. What I do like though, is what God promises us about the future.
"Do not be afraid or discouraged, for the Lord will personally go ahead of you. He will be with you; he will neither fail you, or abandon you." Deuteronomy 31:8
"He will never fail me" ......but my plans will. Don't get me wrong I don't think you could force list making and planning out of my brain. But I have spent sooooooo much time worrying over what is going to happen that I have missed so much of what has been happening to me in the present! So today, I am enjoying my family, I am soaking up what God has to teach me, and I am going to make some spaghetti.........and tomorrow is another story.