I can't decide for you whether or not you have got to write, but if anything in the world, war, or pestilence, or famine, or private hunger, or anything, can stop you from writing, then don't write . . . because if anything can even begin to keep you from writing you aren't a writer and you'll be in a hell of a mess until you find out. If you are a writer, you'll still be in a hell of a mess, but you'll have better reasons.