Don't let that be a barrier. You don't not buy a house because you're afraid to take on a mortgage. If you want to be a doctor and figure you can do it, don't let student loans be the barrier - taken on debt you can repay.
GIven medical school is intense full time, the equivalent exposure part time would be 10+ years, and wouldn't train you to focus on one task, which is kind of an important learning outcome of medical school. There are plenty of assistant and tech roles in medicine, at various levels of expertise and pay, but doctors are at the top of the totem pole here.
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.