There are so many problems to solve. I always like to post these lists when an article like this is posted on HN and the discussion ensues about what feels good to work on. There are so many problems that need your help to solve.
https://en.wikipedia.org/wiki/List_of_global_issues
My father always told me: "you will have a vocation, and an avocation. They are separate activities." What he was telling me is that I should find a job, and a hobby. And they should be separate.
I believe that there has been a severe injustice done to students over the past 30-40 years by instructing them to find a job that is their passion. That's putting too much pressure on a person; and it’s largely unachievable.
It's okay to make money doing one thing, and enjoy yourself by accomplishing something great doing another.