If you eat weeds and dried fish, you will be OK. The Philippines is an expensive place to live, if you live by Western Standards.
It is possible to live off of that much money. However if you involve yourself with prostitutes then there is no way you can do it. The only reason why a foreigner would want to live in the Philippines for 6 months at a time is to be closer to prostitutes.
My prediction is that it will not be enough money to fulfil your need for a lifestyle that involves soliciting prostitutes.
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.