There is sooo much info available on this...
https://duckduckgo.com/?q=when+to+take+ssn&t=ffsb&atb=v72-6__&ia=web
I'm in the prime of my civilian earning potential...odd, that, but I am. Taking SS before full retirement is, since I will make much more than they allow me to before deducting and penalizing me before FRA, a poor choice.
I have never accounted for SS as a part of my retirement portfolio...if SS benefits exist i four years, I win.