Six Principles For Sharing Your Testimony - Shelby Abbott (The Gospel Coalition)
Share Your Faith Story: Tips For Creating Your Testimony - (Focus on the family)
How To Share Your Testimony - (C.S. Lewis Institute)
How To Prepare Your Personal Testimony - (Navigators)
Writing Your Christian Testimony - (Billy Graham Evangelistic Association)
How To Give Your Christian Testimony - (Ascension Press) - podcast
A 3-step Way Of Telling Your Story - Jim Frech (Renew.org)
Not Always About Conversion
Your conversion was probably the biggest change in your life but there have hopefully been many other times when God has transformed you through an experience or something you have learned. Those stories also have a before, a moment when God did something and an after. Practise identifying those moments and giving God glory by being able to acknowledge His good ness and the difference He has made in your life.
While your conversion story remains your biggest story, hopefully it is not the only story you have of experiencing God. A daily walk with God will provide many others, and noticing them, and tlaking about them honours God.