Now back to the question of why share your testimony? What is the point really? It is quite simple actually. When we share we bring others to the throne.
1 Peter 3:15
But in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect,
But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth.”
Why share one asks? I counter with why not share? Now go tell it on the mountain, over the hills and everywhere!