@Self-Determined
I think what you are describing is extreme projection and just like any other thing when extreme it becomes distorted.
Let us breakdown your thought here:
“If I believe I have no worth and deserve to be abandoned then I believe that about others.”
You can believe having no worth (though worth challenging this crtically)but deserving abandonment (an adult usually cannot be abandoned like a child so this may be a younger part of you…most adults, we sort of accept when others leave or die etc) so may worth looking at it who is thinking of this – you, the adult form versus a childhood wound. Giving this belief to others is projection. You can project or keep it as your own subjective and wounds versus, you have no control about others and their subjective and wounds.
“Which means that when I encourage others I secretly wish them harm.”
What is the reality here? Did you encourage someone, and they listened to you? And did you wish a harm for a person? And wishing is not a real thing and natural to wish bad things sometimes and so what? Again, you wish something is just processing and exploring your feelings and means nothing to those you wishing anything on. They do not know you are wishing something bad on them! Wishes do not exist.
“Which means that I am evil.”
I think this is the core issue.
I also came to this conclusion in therapy myself. And then after a long process, for me, I came to this conclusion. Due to my childhood and the amount terror and violence, and neglect I faced, I came across evil doings and because I was impressionable, little helpless baby, I looked into the face of evil (confused, mentally deranged mother) and saw myself in her. So as a baby, I internalized the evil mother as me cause that is what babies do. I looked the mirror, the mirror (my mom’s face) was evil terrifying and rather than believing mom is evil, I felt I must be evil. When the mother is healthier, babies feel great and happy – generally speaking about lack of traumatic childhood.
You can go on the deep abyss of thinking about this but at the end, I differentiated Me (baby) vs Mirror (mommy). We were two different beings. I did not have the tools then but I do now as an adult. Whatever she was, I am not.
Let us say, if I meet a person today displaying evil doings like manipulation, gaslighting or general hate, I see them, but I do not become them! Cause I am adult and have my own identity. Where back when I was baby, I was becoming or feeling becoming more like my mother. Thank goodness, I woke up from it.
That is my story.
What I will ask you is this: When you were a child and looked the mirror (of what happened to you) what did you see? Where is this evil is coming from? Who hurt you so bad to make you believe you are evil and continue to hurt yourself? And who is stopping the hurt now?
You may not remember everything explicitly, but your body will.
If it is too confusing, give an example of things you actually done that are testament of your thoughts: You will see that today: you are hurting yourself, telling yourself you are worthless, self-abandoning, wishing harm to yourself, and convincing yourself that you are evil - all alone. These things happened already to you – someone did them to you and you believed them so strongly and repeating them without critically challenging them in comparing to NOW! Today.
I could be way off here, but I think not all of them.