Day 120 Preparing for My Job in December

I am fortunate to have gotten a job here, so I will stay for a while. I will start working right after graduating from language school. Although I was able to move up to the highest class, I understand that there is a big gap between studying in a classroom and working in a real job. My confidence had gradually been chipped away until last week because the person who will train me has extensive experience studying abroad. However, I have recently been able to think, "This experience will definitely be valuable for my future."
I am not sure what level my English skills have reached, but I know I must take on the challenge anyway. The most important things are simple: not showing off my previous career, accepting my mistakes gracefully, and letting go of my pride. My attitude toward everything is what matters most. I also plan to celebrate even small achievements to maintain both my mental and physical well-being. No effort will be wasted.