No system of magic is set by ceremony. If that's all you know then you know nothing. You're only going to learn any system by learning to use it's energy, in necromancy's case that would be Death energy. If you can't work with energy well, which judging from your patience you probably can't, then it's not going to work.
Circles are not just for necromancy "rituals". They're generally used for protection and raising energy. Necromancy is more than just working with death essences. You have to be able to identify and manipulate all sorts of energy. Its an actual path as well not just rituals, working with spirits, and divination. Like all things its not something you rush into. It takes knowing your magickal fundamentals and lots of patience.