First day of lesson

I have started the first lesson of master degree today. I am surprised to have so many "mature" and "senior" classmates. I think that I was the youngest in the class (I guess). The atmosphere was quite scary. I was really afraid that I couldn't catch up the pace with them. But on the other hand, for the positive thinking, the youngest group must have more potential, right? Actually, I always forced myself to keep this positive thought in heart otherwise I will run away from the classroom at once. Although the content of the lecture was extremely difficult, the topic is interesting and useful. At least, I have not fallen asleep during lesson, hehe.