That's typical oily skin doing strange things. Wash with facial cleanser or soap every morning and evening, especially in problematic places. Wash it every day, wash it more, it won't be so bad, and it will gradually disappear. But don't be careless when you get well, you must persevere.

I am a freshman in senior high school, but I didn't study a lot of homework during the summer vacation. I'm depressed. I hope someone can help me.