ステファンさん、お疲(つか)れさまでした。 Today, the expression of denial was well done. You could say "not" right away. Please use it when you talk in a new place. It's hard to remember many things, but let's do our best. では、また来週！

ステファンさん、おつかれさまでした^_^ How to read the time was well done! After that, practice yourself so that you can say it immediately when you speak, please. Remember each and every one of your forgotten things! I’ll help you as much as I can. では、また一緒に勉強しましょう😄

ステファンさん、お疲れ様でした！ It was our first lesson today. Aren’t you tired? Mistakes are welcome! Mistakes are source of growth. Practice repeatedly and use what you have learned in your daily life. では、木曜日にお会いしましょう！

Thank you for giving me exciting 30 minutes by chance. It was my first instant session. So enjoyable that I felt it something like a music live session. Your challenge for first-meeting conversation was so positive and it made me cheer up. You are accustomed to speak colloquial Japanese, so with more organized practices by well-trained teacher you will soon achieve what you want to do in Japanese. Good luck!