wackou.. those are very responsible and deep statements you wrote. I'd also like to thank you for doing what you did all these years.
The emergency room surgeon stuff, I have a lot of a gratitude for you being one of the surgeons during those times that helped save us.
I have also felt that I started to burn out due to trying to do too many things at once, and the motivation made place to a sense of defeat and apathy, explained by the fact that I wouldn't be able to do everything I had planned to.
You're right. Time to focus and specialize. You have more than enough experience to apply yourself strongly to specific areas... I wish you the best in your endeavors going forward.
...and this isn't the end of you. :) It's just a new beginning. :)