I appreciate your concern @lupega and I understand where you are coming from. I am aware of the origins of most practices around Halloween and other practices outside it too. I've have faced demons. I am a student of Theology and I plan to continue my practice in Apologetics in revealing the truth behind the darkness including the occult before the Light of the Cross.
Finally, be strong in the Lord and in his mighty power. Put on the full armor of God, so that you can take your stand against the devil’s schemes. For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. Therefore put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground, and after you have done everything, to stand. ~ Ephesians 6:10-13