Piece of advice

From lately days of my childhood I remember one of my neighbours
He used to tell me that this life is just an old bitch
So boy don't let yourself be a customer
Better try to grab any good chance to be a pimp

In those days I couldn't find the meaning of my neighbour's talking
But as years have gone by I've realized the point of
Don't let yourself be a customer
Better try to grab any good chance to be a pimp.