Judo would be great brother , if that's what you want to do.
Fighting dirty is the best way to combat someone bigger, you need more than just one martial art, you need training in every range of combat, the best way to beat someone bigger is to cheat however. Funnily enough I always thought bjj would be more effective against stronger people and maybe it is, all I can tell you is I used to spar with someone far stronger than me at my gym and I had a harder time beating him on the ground then I did standing up. Maybe I was just better at standing fighting but I think a lot of it had to do with his strength, when you fight strong people on the ground that don't know what theyre doing its easy to just use all the high percentage moves and they are unlikely to even try to defend the right way but when you got a strong person who knows what theyre doing you seem to have do everything faster and more precise to beat them cause you can never win fighting for grips.
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.