Well first baptisms for the dead is done but it is up to the person to accept the proxy baptism in the name. But these are not available if you had the chance to accept the gospel and do not accept the gospel.
What is the benefit of repenting and doing good things my entire life?" The benefit in repenting now as to repenting later is that you have the opportunity to repent now and enjoy all the blessings associated with being one of Christ's covenant people as opposed to repenting later (which assumes you get the chance to repent later) at which time you will have been the wrong path for so long and suffering for so long that it will be a long long road home.
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.