You can absolutely retract your bid, if a seller changes the size. I have included the link below that will take you to the retract your bid form.
Yes, you can. That is one of the advantages of sniping, you have more time to manage the amount and the quantity of your bidding because you are bidding on the ebay site later. See free jbidwatcher or Gixen.
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.