54 here. Empty nester with a stable personal and work life. I feel happy most times, a bit of envy when I see younger folks. Borderline financially stable go

54 here. Empty nester with a stable personal and work life. I feel happy most times, a bit of envy when I see younger folks. Borderline financially stable going into retirement. If I stay healthy for the next decade and keep working I will be OK financially.. not yet there. Mortgage 70% paid off. I feel 'mature' and at peace, now, and sometimes kick myself for not getting into that state at a younger age. I still enjoy fulltime-coding, no carpal tunnels yet..30 years at the keyboard. (thanks to a mouse/windows/apple aversion). Sometimes I think I've 'failed' in a positive sort of way, by not being aggressive and going into corporate management. Other times, I wonder why am I still coding, my friends all seem to be managing (but cursing their jobs at the same time). I especially feel good when I see myself as being reasonably healthy and active. Like others, I am getting to accept and look past the things I won't achieve. Strangely, many things (both technical/conceptual and life-related) seem easily grasped, the more I relax and slow down.