If this is your 1st day, I welcome you into the decision. If this is a decision made again, I welcome you back. There are so many verses in the Bible that can help you decide the best steps to take. I urge you to read the whole Bible but if you struggle as I do, read Ephesians, Philippians and Colossians.
Its not that hard of a prayer and you can say it to yourself, or outloud:
Lord, thank you for loving me. Thank you for predestining me for all Your Glory. Today, forgive me for all my sins, teach me your ways. Come into my life and show me how to be a new creation.
This will be the most important decision that you will ever make in your life.
If you prayed and believed know that we will meet for all eternity with Jesus!