scary experience

when I was in 7th grade of junior high school in 2019
i had a scary incident this happened
at night late at night around 11
and in this position I am alone at home. I heard the sound of people sweeping the street next to my house. and I wonder who's sweeping the street. after I waited for the motorbike to pass, the sound of people sweeping disappeared and after the motorbike got farther away, the sound of people sweeping was again. Then I ventured to open the window of my house to find out who was making the sound of someone sweeping and suddenly after opening the window in the house. outside the house no one sweeps out there
I also read the prayer then rushed to sleep because I was afraid and the next day I tried to forget it. That night I had the scariest experience I've ever had.