Faith without works is dead because unless you live out your faith it is not real faith. Demon and Satan believe in God. They obey God, but they do as ordered out of fear not love. Faith is action motivated by love that trust God like a child. It will have you do things even when you don't understand because you know God will not drop you.
When you do not know who God is or trust Him, then you cannot live out a life of faith. It starts small. God calls you to believe in Jesus, then be baptized. You don't fully understand, but you step out in faith and put it into action by declaration and baptism. Then you spend time learning and understanding God better as you become a disciple. You learn your gifts and how to use them for God while changing your lifestyle to be more like Jesus. As you grow you are called into deep situations where you have to rely on faith.
When you hesitate you start doubting, you allow fear in, and you stumble. You have to depend on God to be able to see Him work in and around your life. It is the step of faith that make your purpose in life clear. You can't pray for something and then just sit there expecting God to do everything. You have to do your part. You grow stronger, bolder, and more outspoken because you have experienced God's love, miracles, and closeness.
When you live a life of putting your faith into action you are have God's grace and favor. He knows you will not do it perfectly, but you at least try. You are not a manufactured Christian, but a real person that loves Him and is devoted to do what He calls you to do. It is experiencing life with God that makes you different from the world.
It is your faith that gives you the confidence to ask anything of God. It is your heart that makes it where God wants to give you the things that ultimately makes your life better and serves a purpose. He will give you things in abundance, but your treasure is not what the world considers treasure.
In life you see a person that grew up knowing they were loved to have more confidence in life over the people who did not have that security. It is the same for true Christians. When you know you are loved by God you live differently, more confidently. Even if you did not have that growing up, you can have that now. You are loved. You are not alone. You can do anything with God's support and guidance.
Genesis 27:28-29, Numbers 11:7-9, Deuteronomy 33:26-29, Galatians 5:5-6, Ephesians 2:8-10, Colossians 3:22-25, Hebrews 11:1-10, James 1:22-25, 2:17-26, & 1 John 3:18-20