From the numbers posted, i would say that you are already rich.
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Time to go beyond absolute returns and explore risk-adjusted return.
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Instead of focussing on accumulating more,
one would rather focus on diversifying and capital preservation
to ensure one is financial comfortable, no matter what happens in the future.
Personally, for the finanical situation described in this topic-thread, i do not see a need to speculate with stocks.
(if you have a fear of losing out on any growth over the next few decades,
maybe have a small but significant percentage in some ETFs/MFs.)
Accept that passive / boring is good. Get used to it. 
Hmmm…
In case you haven’t read it already, this should help you get started. 
