Immediately backup all important data. Your HDD in on the verge of failing. You will need to buy a new hard drive and reinstall windows.
Sorry to be the barer of bad news but I've seen in a hundred times. Google: "click of death.
Computer freezing is just a symptom of underlying serious problems with your operating system; and two possible causes for such occurrence are Virus/Malware and System/Registry Errors. You need to download any good cleaning software such as RegInOut for cleaning your system. Assuming that you have Anti-Virus installed.
Also look into the possibility of downloading MalwareBytes. Run scan of all software’s and you would be done with the issue of freezing/lag etc.
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.