Why I am a better teaching angler than you are. (I don't really believe I am the best teacher, but I'll play. )
Finding fish on structure is not a complex differential equation that requires a high degree of intelligence to comprehend. Structure and cover are very simple concepts that, once defined, should be easy for most anyone to understand. Often left unsaid is the fact that learning structure on a large lake takes a lot of work and time, and typically the rewards from this process come later rather than sooner. The process of learning the structure of a lake is not difficult to understand. It is just difficult to execute due to the time involved.
Back in the days of Buck Perry, the way to learn structure was to drag lures across the bottom in successive parallel paths, each one deeper than the last, so that the angler could feel and locate points, humps, drains, creek channels, etc. When a nice point or other type of potential bass holding structure was located, a series of paths perpendicular, parallel, and across the structure would be taken to determine its layout. Eventually, this process led to enough knowledge of the bottom to map out the bottom of the lake. Anyone can see that this method took a lot of time and even then, spots on spots could easily be missed. But . . . . it did work and Perry was dubbed the "Father of Structure Fishing."
Once depth sounders/fish finders came into vogue, this process was made slightly easier, though the angler could still only see what was under the boat. If you still use one of these depth finders, then you will need to spend a lot of time following a process similar to the old "Buck Perry" process if you truly want to learn your lake. Once you learn quite a bit, you will be able to find and catch fish much faster.
If you use side imaging and down imaging, then you have obviously shortened the process of learning the structure on your lake. One can now see out to the side of the boat and get a quicker view of structure. Anything that appears to be a potential spot to hold fish can then be further investigated with down imaging, 2D sonar, or lures.
Additionally, an angler can and absolutely should peruse maps and online data about lakes and weather to narrow down probable lake areas for investigation. He or she can then concentrate the investigation process in the areas already chosen, thus decreasing the time needed to find fish. Keep in mind though, that if one chooses the wrong areas for investigation in your pre-trip searches, you may find yourself struggling on the water. Always check the conditions, water, etc when you arrive at the lake so that you can hopefully alter your plan if necessary.
As one can surmise, small lakes can be learned pretty quickly. Learning a very large lake is where a lot of time is involved. It is imperative that you do your research on a large lake to narrow your search areas if you want to achieve success in a shorter time period. Keep in mind that knowing the structure of your lake is useless if you are not familiar with how a bass typically uses that structure throughout the seasons.
In summary, it doesn't take an intellectually superior human being to be a good angler. It just takes one with a desire to learn, persistence, and the time necessary to apply these ideas on the water. I am not among the best anglers in the world, or anywhere else for that matter. But I can teach you and I believe you will be more likely to absorb what I teach because you will never feel that what I teach requires a special gift or superior intelligence. If you struggle with finding fish, don't be discouraged. You can do this.