So be careful how you live, not as fools but as those who are wise. Make the most of every opportunity for doing good in these evil days. Don’t act thoughtlessly, but try to understand what the Lord wants you to do. Don’t be drunk with wine, because that will ruin your life. Instead, let the Holy Spirit fill and control you.
Ephesians 5:15-18

In reality, every human being is just a prayer away from receiving the grace and forgiveness of God and the promise of heaven. But it has to be the right prayer, based on the right facts: that Jesus Christ came into this world to save sinners, not "Do-Gooders": "I have not come to call the righteous to repentance, but sinners" (Matthew 9:13). You can begin to trust Christ for your salvation today instead of your own, futile efforts of trying to be a fairly nice person all your life. Obviously, your heart attitude, your sincerity, is what really counts. God knows your heart. But if the following suggested prayer will help to bring a sense of closure and certainty to your decision to believe in, to trust Christ, then please feel free to use it as a simple guide:

"Dear God, I admit that I am a sinner, and nothing I can do will ever get me to heaven. But I believe Jesus Christ died for me and rose from the grave to prove the validity of His claim to be my Savior. He took my place and my punishment. So right now, I place my trust in Christ alone to make me presentable and acceptable to you. Come into my life. I accept the gift of your Son. Thank you that you are now within me, not based upon my feelings, but upon your promise that if I open the door of my life and invite you to come live within me and be my Savior, you would (Rev. 3:20, John 1:12). Make me the kind of person you want me to be. Begin to show me that you really have entered my life and heart, and now give me the guidance I need to live a new life in fellowship with you. Amen."