There are a great many graduate schools out there for those who wish to attend them. And if you decide that it is the best possible choice for you, the number of curricula that you can choose from is incredibly vast (especially since most graduate programs are highly customized by default). In grad school, you push yourself beyond merely memorizing facts, and begin to become a genuine contributor to the research of a particular subject, and eventually become an expert on your particular niche. Keep in mind that your doctoral thesis might actually be the foremost work on a particular subtopic, and that your knowledge by its end may be superior to that of anyone else in the world’s on your chosen subject. But of course, going to graduate school is a very great commitment, and it should not be undertaken lightly under any circumstances. Do not go to grad school unless you meet the following conditions.
First off, you need to actually want to go. No matter how talented you might be at any given topic, your desire has got to be resolute if you want to push beyond “just college.” This is not about getting a degree so that you can get a job. This is a topic that you actually enjoy studying, and that you would pursue for free (which is good, because for awhile that will be your most likely option) until you understand as much about it as you ever possibly could. You need to have a burning desire for knowledge on a very specific topic.
For another thing, you have got to be a dogged researcher. As talented as you might be, a great deal of your time in grad school is going to be split between the library and the laboratory. Even though we have the Internet, and most of the knowledge of humanity is stored within its circuitry, there is just no replacement for old fashioned books and old fashioned observation of the real world. If you lack the emotional capability to study for long periods, you won’t work in grad school.