How to say - "I am glad that X" in Japanese ～て／〜なくてよかったです

The video tutorial begins with greetings and a discussion about a recent typhoon, highlighting its minimal impact. It then delves into language expressions and adjectives, followed by a narrative on a shopping experience that emphasizes decision-making. The tutorial includes various practice exercises to enhance language learning, with additional exercises for reinforcement. It concludes with final thoughts and a wrap-up of the session.

What new insight or understanding did you gain from this video?