mountain tops or valleys and deserts

i want to be used by God at all times of the day and night. I want to be used to proclaim the goodness and the power of God and the Holy Spirit. I want to tell people there is hope. I was a boy who saw the world as dark and hopeless, I was a boy who awlays saw the cup as half full. BUt i serve a God who sees hope. I am becoming a man who sees a world with a hope. I am becoming a man and sees myself as worthy, and all this is because of God's grace towards my life and me. Looking back at some of my past events during my life, It amazes me what God did, and yet there are still many days i doubt that God will get me through trials and temptations. I am realizing it is very easy to dance at the top of a mountain, but when Jesus returns us to the valley and the desert will we still praise him with a resounding spirit and song?