Yes curses do exist, but the blood of Jesus has been granted to us for redemption from all the curses and we receive deliverance from every curse by putting faith in Jesus' resurrection.

Everyone requires deliverance, as we're all born sinners. Deliverance is part of Jesus' ministry as He dwelt among the flesh in Human form as we see in Luke 4:18-19 "The Spirit of the Lord is upon me, Because He hath anointed me to preach the gospel to the poor; He hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised, to preach the acceptable year of the Lord."

"So if the Son sets you free, you will be free indeed." - John 8:36