Your are right, Tom!
One thing that would help restore the peace of mind for most of the folks plagued by GC worries is to visualize yourself in
Maslow's Pyramid of Human Needs and ask where are you as of now and where do you want to be in 5-10 years. When I first did my self assessment, I was at level 2/3, but it was a no-brainer that I wanted to be at 5 within 5-10 years!
I guess, the GC worries stem from lack of security, which in turn stems from weaknesses in social and ego needs. For me, the GC worries stemmed from plain and simple financials.
But, once I realized that if I live in US, there is no end to financial worry (even after I retire! Thanks to flawed US economic policies as of now), I asked myself, how am I securing my financial independence by staying here? By counting on a chance of winning a lotto? or on a chance of being one in million 'entrepreneurs' that sold their start-ups or went IPO route? Both for me are remote...yes, I'm brutally honest.
All I can achieve realistically here in US is a reasonable job and a mortgage that would last till I walk to my grave (and that always hanging democles's sword of medical expenses). Is that what I want for myself and my family? And, the answer was a simple no.
As soon as I had this answer, all my yearning for GC vanished in an instant..it became just another social process (like getting driving license, credit card etc)...freeing me of all worries...
Of course, I started to ask 'What else'? The choices were as follows:
1. Return to home country and start a job (Business is not my cup of tea)
2. Move to another country and start a job
3. Let spouse start working and I handle the home front
4. Start education
5. Develop alternate income source (investing)
I've taken 1 as granted (my fallback position that provides me sound sleep at night). I'm working on developing 2 (thro' my company and my network). My spouse is working on 3 (yes, with right qualification, your spouse can have a job as well, surprize, surprize!). I'm keeping my options open for 4 (still keep myself involved w my alma-mater, meet w profs/students, read/participate in conferences) and it is my second fallback option.
However, most of my non-job time is being spent on 5 as of now. That is something I can do and it is not limited by where I live (stock markets are everywhere!). Also, you earn while you learn (can't beat that!)..
One fact that I struggled with is the difficulty of letting go the security of bi-weekly paycheck for option 5! Yes, it is HUGE!!! I still can't picture myself taking care of cost of living thro' an irregular source of income..and, it is still giving me gray hair!

But, I'm working on it..step by step, day by day...
In Maslow's pyramid, I've moved through level 4 and currently working on level 5...self realization! I wish everyone here the speedy journey to level 5 and freedom from GC worries...life is short, enjoy it!