No, valuing solitude and magick go pretty well together, see the Hermit, Tarot card & archetype. Also, that is actually how humans are designed to live, a small trusted pack you share blood ties with, and shared interests.
We’re not global beings, we’re tribal.
Outsiders were often competition, fatally so, and those who were overly open passed their genes on far less.
I believe there is some “Science and Art of causing Change to occur in conformity with Will” that will work for everyone: calling spirits is not essential to magick, there are chaos magick methods and Science of Mind things which only use focused attention.
If you’re naturally an intense or overly thoughtful person, these may even come easier to you than hoping some astral denizen will pop up and give you a hand.
Could be, but even if it was, you might as well make the experience as nice and rewarding as possible. 
Spirits are not needed, but if you explore other methods, you could find that out later.
Primal human fear of nighttime predators, consciously watching you with intent to harm.
Perfectly normal, though you may later enjoy the challenge of getting rid of those fears.
No, probably your mind was in a liminal state that bypassed the blocks on it. Even practicing magicians often get huge info dumps in dream states.
All comments above are just my take on things, not definitive, but I think I get where you’re coming from and you’re fine, not uniquely blocked or anything. Everyone has some form of art they can do, some subjects they excel in, same with magick - just a case of findigg what clicks for you, what you can invest belief in (or at least, have enjoyable suspension of disbelief), and what you find interesting to do. 