Well, it depends on what your story is about. If it's about a journey, start from the moment you decided to go. If it's about a person, start from when you first met them.
Well, you can start from the very beginning. Think about what was the most significant event that led to the story. Maybe it was a decision you made, or something that happened to you out of the blue.
You could tell a close friend. They are likely to be interested in your story and pass it on to others. For example, your best friend who always listens to you.
It can help you relieve stress. When you share your story, especially if it's something that has been bothering you, it's like lifting a weight off your shoulders.
I'd say start with a catchy beginning to draw people in. Build up the tension or excitement gradually and end with a satisfying conclusion. And be sure to be honest and passionate in your telling.