after class 还是 after classes

My name is Beth. I'm 14 years old, and I study in No. 1 Middle School of Hui'an. My school is very big and beautiful. I'm very happy in the school.

I usually get up at 6:15 in the morning. Then I do morning exercises in the playground. At 6:40, I have my breakfast. You can see many students and teachers in the dinning room. After breakfast, I often read English with my classmates.

We have six classes every day. The first class begins at 7:50 am. I like all the classes, because my teachers can make the classes lively and interesting. My favorite subject is English, so I join English Corner every week. I can speak English with many other students there. It's very interesting and exciting. I think it's helpful for me to learn English well. After class, I always play games with my friends. We play basketball, soccer ball, volleyball, ping-pong and so on. It is very relaxing.

I like my lessons, my friends and my teachers. In a word, I love my school. I find my school life is more and more meaningful and colorful. My school life is wonderful, isn't it?

不知道你是初中还是高中哦，所以不知道适合不适合.
请参考

after class 下课
after classes 放学