Trusting in those stars

When I cannot rely on myself anymore in life, when my own strength is just not good enough and I am left hopeless, trusting in God is my only other option. Trusting His promises is so easy to say but so hard to accomplish. How can I trust Him? But then I think "How can I not trust Him??!!" He gave up His life to save mine! When has he proven himself wrong ever in my life? NEVER. So why this immediate doubt? If God has always proved Himself to be faithful to me, why do I still doubt Him? God's promises are like the stars; the darker the night the brighter they shine. Lord....teach me to trust you....