You are VERY important to God, He purchased you with His blood. You are His. You are God’s property and God created you and set you in this time in history at the close of the "church age" to be His witness. "For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them." -Ephesians 2:10
What you do with your life, counts for all eternity, and we will be accountable.
"For we must ALL appear before the judgment seat of Christ, so that each one may receive what is due for what he has done in the body, whether good or evil." -2 Corinthians 5:10.
"For God will bring every deed into judgment, with every secret thing, whether good or evil." -Ecclesiastes 12:14