Your math skills are better than most and you're comfortable navigating complex systems. Have you considered accounting? No? In that case, let us drop some knowledge on you. Accountants command a median salary of $63,000 per year, while financial managers have the potential to make over $100,000 per year (source). 

There are also related career paths that can net a higher average income. Financial analysts, for example, earn a median income of over $75,000 per year (source). Those numbers are nothing to scoff at...and our accountant certainly seems to do well for himself.