Decisions
It boils down to one, do you really want to leave the career? I remember when I was working on my CFI, I was working at a bank, I had grown accustomed to my high salary, I loathed the idea of being a CFI and liked very few people at my flight school. Flying had become unpleasurable.
Turned out I didn't like flying because I stopped flying for pleasure and turned into another mundane task I had to get through. A few hours in a PA-18 changed that, I realized why I got into it to begin with and it clicked again.
I am not saying you should change your mind and return to aviation, but I am saying ask yourself why do you want out, why is sales a better choice - when you have the honest answer and if you need to explain it to others or feel compelled to do so, say the truth. People change, I wanted to be a pilot since I was five accept for the summer I wanted to be a garbage truck driver (seven), no idea where it came from.