Avoid the mistake I've made for years: do not work for almost nothing for the sole cause that you like what you do. I loved to show, was a good teacher and knew nothing in regards to the other two demands. I still like to train, and I still am a good teacher. The difference is that now I teach adults who are craving to master French because they do have a project: to reach the initial step of wealth. In their case, they need to master French and to blend it in their specialized range of activity.
And you? What are you going to select? Mining and Chinese? Refining and Arabic? Art History and Chinese?
The first decision is quite simple: to dream of finding rich or to want to be rich.