Vietnmese Grammar #6: SAU vs SAU KHI Video Lecture | Learn to speak Vietnamese (Advanced Level)

A major change in my life
A major change in my life happened after I came to Vietnam for the first time.
A person that I know invited me to go to Vietnam with her and two friends of hers.
At first I said I couldn't go with them. But after I thinking about it for a few days, I changed my mind.
Before I came to Vietnam, I felt a little worried because I didn't know what to expect.
After one day in Vietnam, I had time to relax and met some people, I felt so different.
While in Vietnam, my world was changing a lot.
I experienced new culture, met new people, and saw part of the world that I had never thought about.
When I decided to go to Vietnam, I thought I would go there just one time.
I didn't expect I would come back many more times.
But after I made friends with some people in general and two of them in particular; and experiened Vietnamese culture,
Vietnamese people's hospitalty and Vietnamese food, I knew that I would have to go back to Vietnam for sure.
The last day when I had to go back to America, I didn't want to go.
Six months later I went to Vietnam for the second time.
Why did I go back there only after six months? Well, that's another story.