We did warn you that these would be boring ways to make money. Nothing says "boring" like accountancy. However, it's the very fact that it's boring that puts a lot of people off doing it. Accountants don't have any magical powers. They just study hard, pass exams, and know what they're doing with figures. Very few people want to get involved with that level of math and finance themselves. That's why they pay someone else to do it.
The real money to be made in accountancy comes from knowing how to be tax efficient. If you know what should be tax-free and what shouldn't, and how to present a set of accounts that attracts the lowest taxation possible, your services will be in high demand. If you can work with a large company and save them millions on their potential tax bill, you'll find they'll be happy to pass on a proportion of that saving to you as a fee.