The rest is:
- Understand what the job really entails. Speak to people who currently do it, try get work experience doing it etc.
- look at supply and demand, if only 0.01% of the people who are doing it are making any money, that’s a tough market to do well in.
- look for barriers to entry that you can overcome that limits supply. See what’s involved in building a moat. Passion helps with this.
- work to address the bias towards jobs that sound interesting to everyone eg YouTube celebrity, game designer, footballer etc, although these also fail at the supply and demand stage. Actively look for jobs that are less obvious that have the properties you like.
- consider you’re career holistically e.g. does it fit with the lifestyle you’d like, is it populated by the kinds of people you’d like to work with, how likely is a stable income.
- think long term, dreams change, how hard would it be to pivot
etc.