Trusting God and Believing His Promises

I know that God has a plan and a purpose for me, for my life. Jeremiah 29:11 ... some days, some times it is just harder to hang on to that faith without sight. Course, I guess if I could SEE it, then it wouldn't take faith, huh?

Why is it so hard to believe in God?
To REALLY trust Him with our hearts, with our day to day life?
...We belive that if we flip the light switch to on that we will have light ...  yet, how many of us understand all the workings of electricity?
...We believe that if we pick up the cell phone and dial a number that we be speaking to someone on the other end - just as if we were face to face, not a delay time in conversation. Yet, do you know how you can speak into a phone that you are holding, have the cell signal bounce from tower to tower, go into space and back again, transfer all the "beeps and blips" back to your voice so that the other person hears YOU -- all in an instant??? So quick that there is NO delay in talking?
...We believe that if we pick up the remote and push the button the TV and the "box" will come on ... and we will see LIVE TV. How? I don't understand it.
...Examples after examples ...

I believe in all these things - these things of this world, these things that will pass away given time ...
Yet, I find myself struggling with faith in God.
...Struggling and wrestling to believe -
*God loves me. Even tho I am not deserving or worthy of His great love He loves me. John 3:16
*God meets my need. Not according to my bank account. Not even according to my need. But according to His riches in glory thru Christ Jesus. Philippians 4:19
*By His stripes I am healed. I Peter 2:24
*I am not alone. Hebrews 13:5
*He gives me rest. Matthew 11:28
*He gives me comfort. II Corinthians 1:3-4
*I have hope in Him. Romans 15:4
*I can do all things thru Christ who gives me strength. Philippians 4:13
*So many upon many promises!!!

Why do I question the validity of these promises?
Promises made by God.
Not made by a man who is prone to wander, prone to fail.
Not made by a man who can change his mind on a whim, or due to emotions.
But made by GOD - who is the same yesterday, today, and forever. Hebrews 13:8
Promises made by God who is able to do just what He has promised.
Promises made by God who has our best in His heart.
Promises made by God who must - by His own Word - do just what He has said.

*O Father God! I am sorry to be so much "me".
Please, forgive me.
Help me to be a better child of God.

**I have learned 2 things in my life -
1. There IS a God.
2. I am NOT Him!