Common scientific belief is that time is course-correcting. So if you were to go back in time to try and stop someone from being shot, the event would still take place or the person would die from other means. You could only observe time, and not affect any outcomes, so it would be like watching a program on the history channel.
However, if you're the gambling type, going forward in time has infinite uses to make you money and create for yourself a less complicated life, if you have the ability to return with information you've learned. Money doesn't make you happy, but it simplifies many problems so you can focus on making yourself happy.
I would go back in time for awhile. Only if I could take my memories of the future with me.
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.