I worked in sales, I was terrible, but I found that I was useful in backoffice functions (operations, program management for IT and legal, internal comms). I maxed out my salary at about £75K in those roles (I was probably 32 or so).
I set up a couple of start-ups, sold them both (two over 10 years).
When I was working for a start-up I owned, I earned anything between £20K a year (which was tough, living in London, with a child in nursery) to £150K a year.
Set myself up as a consultant when I was about 42 (I created a third company for consulting) - charged a day rate of £750-1000. Definitely the best money I ever earned.
I took on a long term role (still consultancy) just before Covid - was brought 'in house' when lockdown came. Was placed on the leadership team of the company a year in - the company merged with a larger competitor late 2021, and I currently sit in an SVP (senior vice president) role, in a backoffice function (operations) and earn approx. £140-160K depending on my bonus.
I have a bog-standard Bachelor's degree in a related field, but that's more luck than judgement.
It hasn't come easy, I've put in the hours, I've had to learn and grow, pretty much constantly, I've never felt comfortable in my role, but I am ambitious, I push, and I know my strengths (joining the dots of requirements across functions, facilitating better relationships between conflicting areas of the business), and I know my weaknesses. That has helped.