Oh dear. Years of xian upbringing, and now this! Before it was Them telling you what to feel, and when to feel it, plus why to feel it.
You have now come away from all that, only to find you're asking all the same questions, and getting all the same type of answers - only from the Pagan mob!
i.e. Don't feel bad, don't feel so scared, do this, do that etc. And it all becomes even more confusing - frightening even.
The way I see it is that we ask questions because we have free will. Something the Church has tried to drum out of people, mainly by inferring that free will came at a cost - that of Original Sin. And that we as xians would have to atone for that, not only in this world (by showing our fealty to the Chuch) but also in the next, as in being "saved/cleansed by the blood of the Lamb of God" etc. before we had a hope in hell of attaining our place (as "good Xians") at the right hand of God.
Note I used the "we" as I too have been where you are, though not feeling quite so distraught, fortunately.
Really, it seems to come down to the whole "free will" issue. As children, xianity teaches fear. Naturally, this then becomes "default mode" - a sort of strange "comfort zone" that ensures few stray from the xian faith. (I call it brainwashing.)
Whether you believe in a God or many, a God of one gender, or of others (including hermaphrodism) really doesn't matter. You still feel awe and a certain amount of fear about contacting him/her/they. And to a great extent this is exactly as the xian faith taught you, and as it SHOULD be! They are awesome. But they are NOT vengeful and manipulative as the Church portrays God, for its own ends.
And before someone says "Oh, JC was kind and helped, and God forgives etc" please, get real. Christianity teaches the NT, but the OT as well. And is FULL of glaring contradictions. The main function of xianity is (to my mind) coercive.
So I am not in the least surprised that you are experiencing the night terrors. Years of indoctrination won't just disappear overnight, because your brain has been deliberately hardwired to believe in hellfire etc etc.
But the Old Ones gave us life, love and laughter. They allowed us free will, without the strings attached. They know that we feel our wrongdoings and make our OWN reparations. Pagans (certainly Witches) must take their OWN decisions, make their OWN actions. By doing this, we grow apace, and our Gods welcome us with unconditional love and give us pleasures of the type the Church frowns upon. The main one being freedom of will!
I have rambled on, and I'm sorry about that. I know you are having a crisis of confidence, but - remember the White Horse's eye, and how you felt back then. That is something NO ONE can take from you!
Tasx