For a while I've been feeling I'm under a "curse" of rejection/abandonment and sexual abuse. Is that possible? I'm a Christian and do believe in spiritual warfare. Thank you .
Many times I have said to myself that "I feel cursed". I talked to my spiritual leader about it. All sin is a curse, original sin, sins of commission and omission, the result of sins delivered by others unto you are a kind of curse as well.
Take the body and blood often. Keep in the word. Pray and talk to God's faces. Ask for intercession and contemplate God's grace. You can not do better to counter the work of toxic intentions and entities than by staying close to God and seeking Him in any way you know how. As a matter of fact, you may find the more you do this, the more you become a target by worldly concerns and the actions of toxic people. This is why I know Susan is blessed. She is quite acutely oppressed at times.
If you think about the parable of the seed sower and the path, the seeds that are trampled. Someone does the trampling and devouring in order to crush and destroy those seeds. Casualties of Spiritual Warfare are all around you, the walking wounded. People die from the persecution that results from active spiritual warfare. Martyrs exist and physically die each day. Some of the conflicts are the tiniest things. The fact that you understand the pain and cursed-ness of engagement, imagine you didn't know you were wounded and dying.
So many people who are dying of sin do so without the knowledge that the cancer of sin is eating them alive and infecting everything around them. They live in ignorance, an unspecified pain which is of their own doing. They die in bondage and torture and land in the "second death". Their whole life they deny with all of their being (and sometimes with the help of other "beings") that they are hurt and dying and hurting and killing others.
You suffer, but you know why. You also know where you can obtain spiritual first aid and, in fact, you know the fountain of all life, healing, and vitality. You are blessed to be in conflict. The hotter and harder, the better. The more that you are pressed by the beast, the more you are blessed by our Shepherd.