seems your personality is not suited for a desk job. your heart runs wild at Sales and think is easier and faster. end of day nothing is easy if you dont have a heart for it. Desk job promise you a career, slow but is steady. But at your age, you are underperforming at 4k. Wont be enough to sustain in todays economy.
Sales, be it cars, insurance, IT, properties, you make if you work hard. It is also a transferable skill, path your industry and growth that you think suits you.