If you are not sure whether you or any of your neighbours is experiencing an evil spirit’s work, it is best to share your doubts with your parish priest, e.g. during confession. You can also try an initial check by yourself. How?
The sacramental of exorcism is conducted according to the recommendations of the Roman Ritual. Exorcisms take place in a place of solitude, e.g. a chapel or a suitable room, usually with a visible image of the Crucified Christ, Holy Virgin Mary, angels. Apart from the priest, other priests and lay faithful, whose task is praying for the tormented person and helping if necessary, can participate in the exorcism. They cannot say any of the exorcism’s formulas.