A study by Benz and Frey (2004) showed that self employed people are substantially more satisfied with their work than people who are employed. The study further shows that regardless of differences in income and amount of hours worked, the self employed were still more satisfied with their employment.
WHY are self employed people happier with their jobs!?
The authors of the study were able to directly attribute the self employed's job satisfaction to the independence and autonomy their work permits them.
"Being your own boss" and breaking free from a typical hierarchical work structure could bring you the work satisfaction you're looking for!!
With this in mind - does your current role allow you autonomy?
What factors in your current role bring you the most satisfaction?