It seems you have already made your decision. As such I am not sure what you are asking. I will tell you that the human brain doesn't stop developing until you are around 25.
As such your personalities still change until then. You will be a different person at 25 then you are at 19. If you will still be super compatible with your bf, who knows?
But divorce rates are not in your favor.
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.