I am happy in Aviation, after starting first flying job in 1980. In 25 years flying in GA (I chose this career, it was not a time builder for airlines) I can say I would'nt have chosen another career. I still enjoy flying, when not working I go flying on the weekend.
I will add I have been self employed for the last 14 years, that means when something needs doing on an Aircraft , it's done not at the next hundred or annual. That helps with job satisfaction.
I agree with the wingeing on this site, there doesn't seem to be much positive comment on an Airline career. For the "Ultimate" job, there doesn't seem much job satisfaction.