Dreaming of stepping on a cockroach: It indicates that you will be very lucky in the near future.
Dreaming of cockroaches: implies that someone around you is bothering you. You tried to get rid of him, but there was nothing you could do. You'd better ask your good friend for help, or he will push your luck further.
It is better to believe these things than not to believe them. According to science, the simplest thing is to think day and night.
There are problems in this regard.