Why Do I need Salvation? The wages of sin is death (Romans 6:23), and in and of ourselves, we have no way to escape the punishment for sins. Without Christ, we had a one way ticket to eternal separation from God.
However, our God is a good God, and our God is love (1 John 4:8, 16). And because He loves us so much, He Himself provided a way out of hell (Matthew 5 and Mark 9) and into everlasting life (John 3:16).
So God sent His own beloved Son Jesus Christ to take our place on the cross, to bear the full weight of God’s wrath and punishment for all our sins on His own body, and to die our death. Only Jesus Christ, the perfect and sinless Son of God (Hebrews 4:15), can fully satisfy the righteous demands of God's holiness in payment for our sins.
Hence, it is only through our believing in Jesus and His perfect finished work that we can be saved, step boldly into the presence of our heavenly Father (Hebrews 4:16), and expect abundant life on earth (John 10:10) and a glorious future in heaven. There is no other way to be saved apart from making a decision to accept what Jesus has done for you. (Acts 4:12)