When we spend our quiet moments restless, full of doubts and fears, we are unable to find peace. We are then also unable to help others effectively. It is through our trust in God that our minds become quiet. It is knowing God is in control of all and that He does everything for good that we can rest in Him and find rest.
Romans 8:28 -- "And we know that God causes everything to work together for the good of those who love God and are called according to his purpose for them."
Trusting wholly in God does not happen in an instant. Like any strong relationship, it takes time and experience together to build a true foundation of trust. However, God has the time and is willing to give it to you. Do you have the time? Are you willing to give yourself to Him? Trust begins with a choice, a decision to give yourself over to God so He can show you His mercy and His love again and again.