Most if not all law schools in the U.S. require you have at least a four-year college degree before applying. You do not go into law school straight from high school. Since most people are roughly 18 when finishing high school, that means the earliest somebody might apply to law school is age 22, after finishing college.
The earliest most might finish law school is age 25. Even then, somebody finishing law school that young probably should clerk for a judge for at least a year or two, so they wouldn't start practicing really until age 26 or 27. Some countries, such as in Europe, do allow people to go straight into law school out of their equivalent of high school.
That's not how it works in the U.S. It would be virtually unheard of in the U.S. for someone to get through both college and law school by age 21.
In north america, law school is a post-graduate degree - so you can't go there at 18, you have to have a degree first. THe UK has a different system that starts after a BA, but is also harder to get into because the process of ascension is quite elitist.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.