I self-harm too. Maybe talk to your boss and tell him/her you're uncomfortable with wearing such short sleeve shirts and would it be okay if you wore so and so. Mine are on my upper arm so they're easier to conceal.
I'm sorry you have to deal with all that.
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.