đó là khoảng thời gian khi tôi sắp tốt nghiệp trung học, tôi không biết mình phải làm gì vào tương lai sau này, thầy đã chỉ cho tôi thấy tôi là ai và tôi có thể làm được gì
that's about the time when I am about to graduate from high school, I didn't know what to do in the future after this, I've just let me see who I am and what I can do
which is about the time when I was about to graduate from high school, I did not know what to do in the future after this, he has showed me who I am and what I can do