He rescued us from the domain of darkness, and transferred us to the kingdom of His beloved Son, in whom we have redemption, the forgiveness of sins.
I don't want to diminish the importance of your discovering God's will for your life, but many of your questions about God's plan can be answered by grasping this simple truth: you have been created by God, selected by God, and empowered by God to fulfill His agenda, not yours.
God's desire is that as many people as possible be rescued from the certainty of hell through the saving power of Jesus Christ. As the apostle Paul writes in Colossians 1:13-14, God wants to deliver people from the domain of darkness and transfer us to the kingdom of Jesus Christ. That is His eternal purpose for you and for me.
So what is God's immediate purpose for us? If His only purpose for our lives was salvation, then why has He left you and me here on earth instead of taking us directly to heaven after we are saved?
God has left us here for one very positive purpose—to partner with Him in the great mission of spreading the gospel and enlarging the kingdom of God. In other words, our positive purpose is directly connected to God's positive purpose.