Christianity is not a religion.
Religion is man reaching out to God. Christianity is God reaching out to man.
"For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. (John 3:16 [New International Version])
Jesus wants you to get to know Him. Christianity is a living, loving, personal relationship with the Living God.
Ask God, does He really exist? You will not be disappointed.
No matter how good or kind you think you are, God's verdict is that your works alone will not give you license to enter into His kingdom. Only through your repentance and the death of Jesus for your sins will you be accepted into Heaven. This will be your decision, no one else's, you stand alone on Judgment Day.
for all have sinned and fall short of the glory of God (Romans 3:23 [NIV])
But,the gift of God is eternal life in Christ Jesus our Lord. (Romans 6:23 [NIV])
Accept the free gift of God, the price was paid by Him for you and for me.