Romans 8:29,30

Whom He foreknew, He also predestined to be conformed to the image of His Son, that He might be the firstborn among many brethren.  Moreover whom He predestined, these He also called; who He called, these He also justified; and who He justified, these He also glorified. 

God planned us and our lives long before this world came into existence.  He predestined us to be conformed to the image of Jesus and our lives are not a surprise to Him.  Our being saved and followers of Jesus is all in His plan and there is a plan for us to walk out on this earth.  We are called and justified in our faith in Jesus Christ so have confidence in God and your calling.