Whenever I am feeling super disappointed because I wanted something so much and it was at the tip of my finger that I could touch it, I hear Sean Connery's voice as God.

There is a scene in my favorite installment of the "Indiana Jones" trilogy - "The Last Crusade" - where Indiana Jones is brushing his fingers against the Holy Grail. If he just extends out a little more then he can grab it, but it means that he'll fall to his death into a pit of eternal darkness. His father, played by Sean Connery, calls to him:
"Indy, let it go." - in the most loving, fatherly way that only a father can call to his child.
Indiana takes one last look at the Holy Grail and then swings his other arm up so that his father can grab him, and pull him up.
Wow, I get teary-eyed just thinking about it. My own father has told me plenty of times as a child to "let it go".
Nothing beats a father who loves you, tells you that everything will be okay (because it always does turn out that way), and makes you feel loved. His love supersedes all the crap that only leads you to your demise, and that he promises to restore joy.
The funny thing is that God knows just how much you wanted something, and He knows that you are so disappointed. But He also knows that there is something better that you couldn't dream up on your own. And He is about to give it to you as soon as you open up the space by letting go of this thing that is giving you anxiety.
You cannot want something more than it wants you.
That is why the love of God and a parent is so important!