There is no such thing as an average human being. If you have a normal brain, you are superior. There's almost nothing that you can't do. When Benjamin Carson was in fifth grade, he was considered the dummy of his class. His classmates and teachers took it for granted that Ben would take an entire quiz without getting a single question right.
Then, you will be arraigned on the Information. The prosecutor must file the Information within 15 days of the date you are held to answer at the preliminary hearing. Your trial must start within 60 days of the arraignment on the Information.
The length of time varies, depending on the importance, and complexity, of the case. Some are granted certiorari, scheduled for argument and decided within a week or two. More commonly, cases take approximately 12 to 24 months from the day they are petitioned until the Supreme Court issues a decision.