“Now is the time in my life where I have to decide on a grad school path. Before I decide, I have to asdfadsf ”

Now is the time in my life where I have to decide on a grad school path. Before I decide, I have to figure out what career path I want to take (currently, I'm on the altruistic non-profit path). I've been putting off this discussion with myself because I'm afraid that what makes me happy isn't actually a good, self-less & noble path. What should I pick?