If someone asked you how or why you became a Christian, would you have an answer to give them?
Your story is your testimony.
Peter wrote that we should “always be prepared to give an answer to anyone who asks you to give the reason for the hope that you have” (1 Peter 3:15). One “reason” for your hope is Jesus and what he has done in your life. Peter says that you need to “prepare” for possible opportunities to speak about him.