What causes girls to be sad and decadent now?

I think it may be a lot of pressure, such as life, work, emotion and so on. Everyone will have peaks and valleys, always ups and downs, and encounter unhappy things. The important thing is not to be arrogant at the peak, not to sink and give up at the bottom, but to learn to empty yourself, cheer up as soon as possible, drive away depression and move forward optimistically.