That's likely why MOST people struggle with even basic things in magic, both by putting a focus on the unnecessary(the reagents, the right words, the right dances, the right flavor of ice cream, etc.) rather than on things like visualization, energy work, and such on a direct level, AS WELL AS the fact that most grimoires DO intentionally overcomplicated things.
The whole of modern OCCULTISM(read, not magic, but the occult itself) is littered with these ideas that things have to be elaborate ceremonies to be effective. Granted at first, and to many, this may be the case. But there is an essential awareness that these are currents of energy, and that by interacting with them in their ''traditional'' form you are getting close enough to them to get rid of the devices, one by one.
So you can do the traditional, get closer to the system, and eliminate object by object...or you can dive headfirst into the currents and patterns and energies and entities of the system, with an open mind, and literally incorporate it into your own workings. A personal system is a best one. ''Best'' in the sense that it is the one that maximizes the most potential.
Overcomplication and conditions, ESPECIALLY when they are externally set, and/or don't come directly from the spirits invoplved, or your own imagination, are just more hoops to jump through, more things to check off some imaginary list, more work, and more energy wasted.
I once cast a spell, for example, where visualizing the result WAS A LIMITATION. Just goes to show that the more filters you can remove, the better.