Honestly...I ask myself that question all the time and my answer is, I'm not sure that I do. However, I do know that after nearly 6 years of furlough having tried my hand in many new endeavors...I have found none satisfying or fulfilling and always come back to wanting a return to the airlines...even despite all that I know about the decline in the industry.
At the beginning of the year, I very enthusiastically started yet another job in another new field that I really thought was going to turn into my long-awaited career with promise. The benefits are great: 20 days vacation/sick, 401K, Union Membership and starting pay at least twice (if not more) than what I would return to as a f/a. The company also offers growth potential...if you can last long enough (18 months) in the department in which you start.
Four months into the position...and I already hate it. This (along with other experiences during the course of the past 6 years) show me that better pay is not the only answer if you are unhappy and feel that the quality of your life is suffering.
So again, to answer your question, I feel like I owe it to myself...after almost 6 years (and probably longer since it's unlikely my seniority will be reached) to find out if what I've always wanted to do is really what I was meant to do. It may or may not be, but I feel like I owe it to myself to give it one more shot. If it's not, then I can finally make peace with it and leave it behind...for good.