Still an old song. How can I put it?

First, I have a dual personality. I always stay up late. I have come to like those old songs. Listening to the sudden and inexplicable sadness, I will also sing and dance with excitement. I am polite and indifferent to strangers. I cursed my old friend. I love if I want, and I hate if I want. I'll have a good time myself, too Sometimes I'm smart and sometimes I'm stupid. When I snuggle up in a pit, I will be lazy if I want to rest, and I will try my best to fight.

Second, I just like listening to old songs now, which are nice. Listen to my favorite songs and recall my mood at that time. I remember that mp3 player was asleep at that time, and the prelude had already sounded before the next song was put in my ear.