small stuff

My wife and I have been trying to sale my truck for a while, and finally we got to the point where we handed the whole thing over to the Lord and within about a week it was sold. Seriously at the beginning of the month we prayed that He would get it sold over the next month. Then two weekends ago I was looking at our finances for next year (Megan is staying home with our little girl) to see what we could expect, and it was the first time that I got concerned. I usually do not worry about money like I began to worry. I felt like we needed to get rid of the truck as soon as possible. Well that was a Saturday and we had the truck gone by Wednesday.
Why did I wait until I was scared and desperate before I surrendered all of this to Him.
Its like I do not trust the Lord to take care of the small stuff, and believe me in the whole scheme of things this was small, until I realize I can not do it myself. Why live life like that? Why not let Him take care of everything from the beginning? Why beat my head on the wall trying to accomplish things on my own?
Like I said there are many things of greater importance that selling a truck, but I do not think I need to live my life calling in God for help when I get overwhelmed. He knows what I need better than I.
Not sure why you need to know this, but there.