You can't do anything to earn your way into Heaven. Your best act is like a filthy rag in the sight of God (Isaiah 64:6). The Bible says that there is only one way to God. The one way is through faith in Jesus Christ and what He did on the Cross (John 14:6). 2000 years ago Jesus Christ came down to Earth, lived a perfect life, was crucified on a cross for the sins of mankind, died the death that everyone on planet Earth deserves because everyone has sinned (Romans 3:23), He was put in a grave that was guarded by Roman soldiers, then 3 days later He arose from the grave proving that He is the Son of God, and all you have to do in order to be saved is Repent and believe in what Christ did for you on the cross (2 Corinthians 5:21) which is the gospel (Mark 1:15).