Whenever you are in dire need and need powerful support to fight back, or to protect yourself against negative magic, ask Saint Michael for help.
A picture, a red/orange/white candle and the following prayer are enough to get in touch:
"Holy Archangel Micheal, defend us in battle.
Be our protection against the wickedness and snares of the devil.
God command him, we supplicate.
But thou, prince of hosts in heaven, by the power of God cast Satan and the other evil spirits that are about the world to destroy souls into hell. Amen."